{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0x643ff94c8181b0a6c643b30813372fd44b1e99e56ed830f994d3af4bf5dc69a1",
    "signature": "0xe71cca8fc132752608dc1e8eddd7a75f7de7beb0b96c50c02c81f91c3aa28318347704d5abcdded7a0f0f0caffc5fd9232d5ab6c802af3ab09ddcfea1dbb37dc1c",
    "signer": "0xfc7064Ac6bb1bFe42B00EEE14298d29bEC53611F",
    "userId": "303606320"
  }
}