{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "683609933",
    "entityType": "User",
    "nonce": "0x5fa1547ead286eec35a194d4587e4003e94cab14839270e6da022de173f7eb6c",
    "signature": "0x26b62a8c401bb901a98a7b5ff49140e431730c0c9382e7178f9ddbcce8f57c436fdac92859d0973d91b2b14331de469ca0d3bef38719be3211377af26b7cb9ea1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}