{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "770725415",
    "entityType": "User",
    "nonce": "0xac56daad7a89b154fc2fba77579dd4458ead65d2f9cf03a0830d5a647f737ce5",
    "signature": "0xb5eaa52bc78750684946afc5b1d23ca4665f0006b5684e82362c67e45e99c34e28343b4d297d5f44f99aefa0a80ebe7d975a5f6fdf2a1e5680ac1d32d50ffe811c",
    "signer": "0x45C682dAb9Cd8ED5e055aC2F6a860Db5F14c27C9",
    "userId": "611525840"
  }
}