{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1882477",
    "entityType": "User",
    "nonce": "0x9f3d368903cb485496d0d3243bd74053b407a910d0ca542faeae7de9757ecd5d",
    "signature": "0x02039354726433dfa14d2554ca61c40fa9d368b5cd7acf284dddda594b057a5d13988dec82e8788f30961cbe1a356593ac8dc157aaa205414a7d130728a606311b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}