{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6e4c66012efdc12ebed1c4228db6215956e4ae3e6715d6bc4a561b007fe634b4",
    "signature": "0x6fda9b72772cfdc175501377cbf0ce0f49002a8c9ac8a7d24dafee236dd365b62adae27f5c40f9b78cd1948bb1c6c6e7c373a09554630035349db2632c21c2a81b",
    "signer": "0x480ee41798A8d5c35a34d2B7258db7CD61d6Ec54",
    "userId": "177221016"
  }
}