{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2f811555924a57e355e7a6b1b34c09fb24e50c113fd28b3de6353b7108f57f91",
    "signature": "0x1605c3dbb3f137c44f62bfb0a2b7a45b4ba5f1997360323f649887436bcc405e07c34f2d6968474dd24c33308475e0633a73da33716745f9577b35df77801ae71c",
    "signer": "0x41D6dd663c25B18135B7fbf180193d17E480605D",
    "userId": "180204291"
  }
}