{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x9c51f424cbf37217210ab689d3a62c7a371a44e065cdf0f8fd65db3bc3635955",
    "signature": "0xe58ccf0e72ae7c7568c08c4a88c3fd18fb02712de278f7403db5b3f901dccec048d80619608cb289991e5eae4675eaf2f64ebfd07b12968e29d6cca24cec9ceb1c",
    "signer": "0x4f24EFcc0f8174B7836f5EBbeBd72AF3f1746E74",
    "userId": "230109234"
  }
}