{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "406225571",
    "entityType": "User",
    "nonce": "0x945211b2c5f351481c566f5c110838ede2917eeac9427a4ed14cdfdb1d325685",
    "signature": "0xd89b233029017f4cbbf4201f3fb8e682867486fdd94a37cf526e4d98127b4b300a0b5ce68420ab7e8bb2a242750c85a449013f9bd879c6562c84c672993ba6e11c",
    "signer": "0xc28F39d473d5C4cacc612630A8798a119D1Bb506",
    "userId": "901788935"
  }
}