{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xe0525026f59d952ae2cda2f28771796c2d7f7d97\"}",
    "nonce": "0x148e4016b69d9c71f77d9553cea5763f050faccf6963d125005a393e4d4a0aef",
    "signature": "0xcb5431d173c4af088231e64546633653c91abf56fcae7b4c3a13bfe5755dc74914b95a5092d6ebb5ca35f2acedbd001aec248883dfbaa2ddf2546b7cd1abcda71b",
    "signer": "0x3eA716b9eC1c61Aa3d46ecece2808A590C86458C",
    "userId": "284245412"
  }
}