{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc30574e1695cec9fd4f80767b05e3196809c6fc1f864004c2deb9ca337bb2464",
    "signature": "0xdeda8c53f02384afec211d21f1f90e3fde4c1a88cb2e6ffb95a00a3b499322dc3b67feeba8313edd6621c6dfcc38222fa51e3f5659de5b4aa3f8d6728804fb711c",
    "signer": "0xC44b1084a018b4a298B2ee6b608cc9cF839f7695",
    "userId": "731972985"
  }
}