{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "286864952",
    "entityType": "User",
    "nonce": "0x108d23d12f74ed2b7f924738ad129d99dea6d89f61163810708e0e8ba1742acf",
    "signature": "0x476642b0e80c2a4c3486029e000ca8419e5ea1664d35b20cb7f62c4b591402ba363c701e98e3dfcfea47f118e815bb1d72a45f9eeca32e786bb210bf2b4304071b",
    "signer": "0x7FF24dfd471261490317851550Db9b8fab0c6df3",
    "userId": "1422295"
  }
}