{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x6471f7c3b41fd3d36e8657ee92b93b809d85a5969acb832de14840f1c5f3f01b",
    "signature": "0x21f36459c829dec6df249b6db9b90d15300d318aa803644ceb77df189c1661184f81e31272d058a159092f4bd571879b45a6d14d46bb58a8f123297b4bdf157d1c",
    "signer": "0xfa1f98f0530E55C2BEFA45f0F1B3A699b4559136",
    "userId": "149566028"
  }
}