{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x4278c9f55ce52a28e677df9cc76f7295ca72f63d\"}",
    "nonce": "0xd277d0c0203f6a41d6db0652c49d87f4587c0b70ac4b11b2d76d80f4cd34710e",
    "signature": "0x9eefe3bb83425e4fe3d967324a031f6a3977143af536b5875af7633377656ac54e3fab6756e4f5245e578d499c7ba34e30975bc16f3e157a171a4c48b32370ec1c",
    "signer": "0xab149ff8191773cca3D658756256803CE45A547c",
    "userId": "22023"
  }
}