{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x64e1a5acef8ecfabe9c5b6ac00f8339cbf12783985303e867308ad06f97490cb",
    "signature": "0x00d364f8956e4d9ac6832ed448c53cfa134cc9ad8b9509fc1057f9c8a94150972128918c5317ed937104b5d4e46ac9ded419ecaa808966efc0ff4d00bdf88eac1b",
    "signer": "0x9c91068943495A5121bB90345fEDED3BEa44Baa7",
    "userId": "550747401"
  }
}