{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "140",
    "entityType": "User",
    "nonce": "0x953ce20112b2ffaf13c8b689e23caa65ab63c356650f7b46ffee171cef598709",
    "signature": "0x61917162056c0bfa2a8a2ab80779eeb19775b5dfe1834ff17e342dfe9ca1da8b363dc5d13010003bebd4d27c401cb955300c373103aec580e5cb3d02e89d6caa1b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}