{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "1792687255076253738",
    "signature": "0x8b19353f8420a997a7160c1f4285b9671cbca19927f7939ce5fe1aa1fbdae4a015e5f792ed61b009fc029b7b9d23c1c34602082fbe22c6c2e2cda191e7a0773f1c",
    "signer": "0xCa7a86b4Df65B57fEe3D5AEb0067eEE149dDc420",
    "userId": "141173039"
  }
}