{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa03f4cca6af8ab5c34090260b8b50a3b40e8dcaf8445b855c7eb1e13a6e8c3ca",
    "signature": "0x61b5b5e8f1c3524f355d67eeff089994f1a77b198eb22477523588c80da7727f5420a08c7e0fe11867b68825c2622e56c0ac24dbe1a42ef5473f858e12cc55ea1b",
    "signer": "0xdA3ea435aD361EC5c1a019FC11B0e0896A3E3CB9",
    "userId": "810962267"
  }
}