{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x5c7999be03fb8b10080fbe68e12faadd28d4f7a1876c2409d743bc7c2025effe",
    "signature": "0xa4d56e838914eb5404f438f2e4b40fc7c8e2421328d328008a4823f655cdb7b77dfa30cc3bee1d9b32bd028e2f0ea0d70461a66cbd42273fd2a32174cf3c7fbd1b",
    "signer": "0x5Af531A9cDF9747df40f57531227d70F1bdD2ed7",
    "userId": "511108744"
  }
}