{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "437217",
    "entityType": "User",
    "nonce": "0x061874d0ddefc0150c8c8d9266d94a752e12a2de8cc3d2fb1dc24deb60ff58f7",
    "signature": "0x58661ea27b898121d54d9379d85399cbb396d1e4502d006c39be87ca1b5fd536102a03d1aa2e7495996d2e8d822414fe41a826665499ba99b0d20de75d4b9ced1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}