{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xe0525026f59d952ae2cda2f28771796c2d7f7d97\"}",
    "nonce": "0xc588c2c4e57fdcd303557bc1422bab2b982acccb7af23232c189692a670bb416",
    "signature": "0xf764d624dc2940724f70cd736f5f6dd3e799a7b59a1b6ef0c58455de17c1c9946b4d2b4e7cfffe9b3f67c8b44a842a10cd647ed1aa88549f1402d5be154a2ad31c",
    "signer": "0xBF4525C2C33c7ee290d9E4630403028bE09EEefD",
    "userId": "945104990"
  }
}