omni_getgrants

{
  "propertyid" : n,              // (number) the identifier of the managed tokens
  "name" : "name",               // (string) the name of the tokens
  "issuer" : "address",          // (string) the Bitcoin address of the issuer on record
  "creationtxid" : "hash",       // (string) the hex-encoded creation transaction hash
  "totaltokens" : "n.nnnnnnnn",  // (string) the total number of tokens in existence
  "issuances": [                 // (array of JSON objects) a list of the granted and revoked tokens
    {
      "txid" : "hash",               // (string) the hash of the transaction that granted tokens
      "grant" : "n.nnnnnnnn"         // (string) the number of tokens granted by this transaction
    },
    {
      "txid" : "hash",               // (string) the hash of the transaction that revoked tokens
      "grant" : "n.nnnnnnnn"         // (string) the number of tokens revoked by this transaction
    },
    ...
  ]
}