{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "281227",
    "entityType": "User",
    "nonce": "0x68c02459b4cd178e45f855426be6349a7be7861088c1bbfd4a9fc648cb392c9e",
    "signature": "0x19eecd177be6e13dc30b3f09a1a78547809a7193b5096a788b2cd22f0a56f8b223f0874502d3eef24c8215a5f25e0de84e33ff0435d1b8d5e0e90f7057f064031b",
    "signer": "0x25e1dfee0D681BE7Cc3edbBa57650eeadD7B075F",
    "userId": "486382568"
  }
}