{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x91009627611de278a2ab043846ab2f7b5284afe6a6273ba6e7c43f99cdf1f1f9",
    "signature": "0x8cf33be4f4fef820fe6e14e1955e149e614583039d77f3e4561b05f59a15835433227cb4425820fd18e5885d5862eea22641e9510fa6681ecf2475cad6919bba1c",
    "signer": "0x291B4533eEfbb3E488121e1C640cE25906a20b6e",
    "userId": "911265314"
  }
}