{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x922cb2ae695da9f7dd0e556954c23eeeb8bffe0e\"}",
    "nonce": "0x7f9d9c007186f6a62a471779b1d9a463dd280977bd96ef569088e78138a4d8ba",
    "signature": "0xefc175d7c64a2632e8c9d99e2c9730e3109f71a034b1fa3e70fac31947112f8e52a2db58999a6ceb59ed141e6e1f08826e516d8672e8b456c4b26026b4e702c11c",
    "signer": "0x5EF3c864B81cEcf00dA78aaFD423E76cf877A012",
    "userId": "421807263"
  }
}