{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294",
    "entityType": "User",
    "nonce": "0x007e4a6ae4c1a48c2d9d361e56df2860bed734fb42240d04819ff07705afea63",
    "signature": "0xbecb1f305b21e092cac47964b1e5964ffe0286f56037ad98791b50dbe6b2b4de0cdd92ba72c8bd4658c5630b9fb6b92c5fb7df1843f3a6596a5b3d68a76f585b1b",
    "signer": "0x1c4Ee34565eE3A8304706138026D7518821F356F",
    "userId": "584804802"
  }
}