{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x922cb2ae695da9f7dd0e556954c23eeeb8bffe0e\"}",
    "nonce": "0x7be979bb512cf5ca3e8a2688a5a4e101e5bb133cb66f048c7d61d1c63803b372",
    "signature": "0x1d8f00a7e1aa94ae9441bec94116b1db7bb62453764e437f6d0b2966a7bc8bd560b9e21addea4a780f7bc07e12c41b34d4bfa182ca476a48cfdc3126effca7e31c",
    "signer": "0x21320E7Cd21269F9898B296CF5EC05A955093161",
    "userId": "665664117"
  }
}