{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50936",
    "entityType": "User",
    "nonce": "0x15674b182dcd42d2f1b75eb82b9761b42c1c4ffea27b3876fa8147fd7ea74fbf",
    "signature": "0x74fc65e439eed309b4539154ae186a9a0c71a0107260d53fecc5866eae186d512c6a8bcce93726773356da23f9194305e43db4266038aa046d2888f6c1c699bf1c",
    "signer": "0x4998e5Ae30a5157C617ba9b6BD651130a779a4E2",
    "userId": "914906988"
  }
}