{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb42691584521d46316311e2a4abbfe1a8e68d2ccd2d853c3342f014589ceb0fc",
    "signature": "0x511e2471a239f008ecd09b948ba456be8f1488efe37c10ae391759d165c0ed581b9c4264e9ce6bb4bbd6f59b306d1d521de0659aceffa06eefcb48a9a5ab21ec1c",
    "signer": "0x71f45CfaFF116349C2665aede07Ad32cD5470727",
    "userId": "630838127"
  }
}