{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "728570067",
    "entityType": "User",
    "nonce": "0x565e4694fefebb172311d7699a6d375f47f06b829f56b82efc2107102671680e",
    "signature": "0x7ab21fa97661458a12a4169cf13347b56a8a1b792a6e50f1c3297c6f0debf0be29ebe850142f0dad7fbda5ae7854ea58344537d77ca03ae242f45804e6bc94881b",
    "signer": "0xAd33018d1AA234072Eed7f991F9891f3688158d3",
    "userId": "413212044"
  }
}