{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9b8d77e40767d0163cdf45146c4a4c32163147cc3322597b25bdf885c0f9c9d7",
    "signature": "0x1ed2c6b2921a56214f367a335874e0bfd9f4f529d7c6573d3299a1fc2d2d52ce03af2f107a3843561c1412a700bfe79f3c3bf926322b8fcab0b98a307af946591b",
    "signer": "0xdca010dBdF68c902FA6645F901F92eeA1017981f",
    "userId": "821058285"
  }
}