{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x5b1bc6b15bfd49d3991ad6e84621e7f0fbf2a77e\"}",
    "nonce": "0x4425b0cb558776a001ba787f9761672d995a234f897fa2e7b0135476f00d4f8a",
    "signature": "0x8d2b684a67d345c6807e1b77c2de9a62dec9db7368400a4a00144d67161706af4c333275ba23d886d547f8c839a489a2bf32f90f31040b0c043cbe18bf998b181c",
    "signer": "0x130c994594f33A907E5a11DA5C2eE283338a3FF1",
    "userId": "298909426"
  }
}