{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134623867",
    "entityType": "User",
    "nonce": "0x288f90902c14771f8bc17f54ef9f855bb6497c2cd7e5fe1c3d776a5f5d6a7669",
    "signature": "0x82dbd874547f1414726a0922eec83a26b620f13a3ec738abd169e6a7e184135f22df646a35bf93b854a4a77b6059d63eaa40f7d0bd9a4c71d460943f8e2b13141b",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}