{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146275",
    "entityType": "User",
    "nonce": "0x526c7a5dd144f60334331193820ab65ea0c5b49d9bb8608391c4ffc9d0130c4c",
    "signature": "0xdb616247d3a5b0efab6d13bbbdac1ce3a8c081d32193a8b0c0ca3b5823590aa579b44a563713c49d5fcfe7e4c2a24349fae47e32142720fbfd60112408b9bfd01c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}