{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcace230f6900c10508faeaf209832c44de7b38cfc27426c579fe0d3cf6143f15",
    "signature": "0x32e6e8a953503bbc3df8f97c6d36c7df9980e91e7fa62e48512526a2f969cddd0818327b1dc3f0f6541622199f7760b01775bc23b3a67d3138e856604fa36afb1c",
    "signer": "0xBc120325394493239b368982ad98be21e4cff197",
    "userId": "221515689"
  }
}