{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x922cb2ae695da9f7dd0e556954c23eeeb8bffe0e\"}",
    "nonce": "0x9b748e1d2ef08f8c84e3007d615684bde8ede94523fc10364d98c93e281d5c10",
    "signature": "0xc3cfbf3f9f06fe097d91776695bb91590c6aedf06351bfa49463f9237fde69904e22df409cd1b38a7b483418045e751e28807da0c559d64b12a27a343bc066191b",
    "signer": "0x54c3AD09C44BB3a92637A86216F3eF1413C9cd21",
    "userId": "100581963"
  }
}