{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x3ebd1b276a0688a3f0f0dd57eb34c2c8c5ffe22c\"}",
    "nonce": "0x385a0294a1aa363f19fbb8780c85892dbaad0b24e165f60b90cd50e2f6ea8bfa",
    "signature": "0x257e7dfe4a7d6ad586c148afb4f6a4f6c427ba4b860f35ba012c31d2ffd6f8e17719d06172cccba218172c5d9b48a73bf0ce319357f7729fb6fe8258349723d61c",
    "signer": "0x81996dE4AdD14a69959433375cF4952FE1aBE0f1",
    "userId": "831436982"
  }
}