{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0x2ceba43d4232835b92c96d45a5c064b65d21e895d425066a11922b4767332c8c",
    "signature": "0xf5d7da86900a2640b47c8878fe111c2c25022603b741ee2101c5fa1987fe4ca34f86c2d13798103e26c2fe48832dd3ee78b65e2db6211f4df88a4f32af65fdd61b",
    "signer": "0x2d18fd643Fc2d1232385d85304E0B5057DAd25Df",
    "userId": "867263034"
  }
}