{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64075",
    "entityType": "User",
    "nonce": "0x5164fb4f2dda6d83218e1c139de87dffccbfa6ba1d09c5fdd90e28f28f9cfd63",
    "signature": "0x260079325402942143307d26fc55b07074d4b085ee0e362ea9752eb0a5d5b3a11dc4afe4da9c300f582faf3cf15846342753eb80c47a3561bb6ffe4cf4e05eb11c",
    "signer": "0xA5594f75935B53086a8f3231b314C131605FEDA6",
    "userId": "140185425"
  }
}