{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb8b7e35201dcbe33decff546f61b6423243cadbd6c03859bea9f807a144cfb27",
    "signature": "0x06e501ab1b47ca3c1803185502e75fe0c7a43975b33b92feeb8b862e482df90d55f4af4f10cee03e9eb77b0e4c49ecff49fa2fcb7ccc6d810029ce0420acc1001b",
    "signer": "0x400C9A366Eff098F2ddA26E9da912FC9E092284b",
    "userId": "151067581"
  }
}