{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954705651",
    "entityType": "User",
    "nonce": "0x563078fbb907b2cf6459554ea98882be6eda1659b3dccfc748d0964ce34487a4",
    "signature": "0x58f57b091fbe898718b34d51a774fd59fcbe7a99b453c2de50b58d695dae83ae1741e5eac4c853a387044dababc5525a0e208f125202ec6275edf8710538ee1d1c",
    "signer": "0x72C3229e8a009963fcCB987460463895a2989d71",
    "userId": "109371348"
  }
}