{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "187954",
    "entityType": "User",
    "nonce": "0x7fe4677f1aae9095a5e248505e83f566ef4efd18a7ea0f23e0d07646849547bd",
    "signature": "0x59be211ffefe35ed2d63d5561fe0ca33969dc085bdf2133b20ccb73e1eccbdde2d27ee7e6cbcb310c2a22ab8fcd1e06ebc9e289ec616947bd39b44eba4ce20351b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}