{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "353528",
    "entityType": "User",
    "nonce": "0x4f0621b7207163506e5a1a6df0be4bec63ccf98bc3778409b9be6e34d59355b2",
    "signature": "0xcb9f7bea28a4798836a5f03d476befad4e83b5a37fe2d56c38027f00bdc5049d48a5067bb339adb15e0c46264447cf8dfdf593a31a93330d92eaf89c165692101b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}