{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8dd9d922aa272f00d7b3d836da4d9b2293c135b0\"}",
    "nonce": "0x5e291216a0294a4bd2c6821d5af90c9c90c8f04e53e26800cb0bedea62d24f68",
    "signature": "0xdc0db323a8ce8b824e37a61bc5be2ce5a383f3fcbeb7924efe6c68dff49c060932d015af294c1b2eac86643e91e52ad36cb4c2a5f7af0af2c0af9fcd11d86ebc1c",
    "signer": "0x31e4F00a63120a8A9A724d1570aa3E4e302ED760",
    "userId": "537304508"
  }
}