{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "571117272",
    "entityType": "User",
    "nonce": "0x38bf4abe0e3874a9ccec5afb87aaa2ed660bec54670dea27b02cc85b20eca291",
    "signature": "0x0f7045aa74726af12509681b8dc10223d8c07b924fdba5318084dd82b6ffeabe5d21fd6be5fbe1391550cc51e13f36d4ee11d8458a36d5cc75dae28e15c24bd11c",
    "signer": "0x43FB3FC9D8Ef17aD9D2f41250bc75809a3D035Da",
    "userId": "593031615"
  }
}