{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2ba2fa0abbccfc8b4c40e3f17ab82fe9849ac6672fd04a10f5a2597e13e62c18",
    "signature": "0x3d135d43c5b3ff1f09ff8a2878664853d3ba704d278a8f03ca668f7d60a61c58423e32a5977b6ff6e002155c543614177dc76d250b1070932794bbfe634abdbb1b",
    "signer": "0x0B175B80B1B582Ed897De31c530667C0e8f46d33",
    "userId": "904596307"
  }
}