{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbb3321a15359836a4f66425e71c4b8f6417c635a2d681e566c56cded3a09f73c",
    "signature": "0xa9365566dd030366c13bd5a5beb2cf5677a02829fb3225ead6b2f88b3fec88be79df5953b50ef8b2003e378bbbfaf46524f628caa8f37eff0d3c09a0541a8e291c",
    "signer": "0xa8C7601e0019CF3CA78bb8a037FdDBeF68761B48",
    "userId": "928462194"
  }
}