{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "976363201",
    "entityType": "User",
    "nonce": "0xe064937e19a1653973890f1c862370653193582ddbc2aedf29b653bcf281e0ab",
    "signature": "0x53c6ec0cfd76898e3fff04afe0bb0bf84d5c145eff76dc8e4a670f4ab577d66f78a404e4c609ff1153d948649dcf5cd56a931ad5d892da5ebca816327b9505281b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}