{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57967",
    "entityType": "User",
    "nonce": "0x6cdb6388619cffee0972d9a485ad1e99ff289e12f369e0d34b2cecc1bb691a17",
    "signature": "0xc3a52540e92ea87a1cc55e91cc6a0ab1aeb4062ed4b29db68dc77f8cb27c0c752297dcecc58bc7b598143bec7de13739fc4327bf5bfce5ac91feb32613948f7b1b",
    "signer": "0x87FC3581f96D45b347BB39E15f25079950C5Cc27",
    "userId": "339826419"
  }
}