{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "957275117",
    "entityType": "User",
    "nonce": "0x37a20c145699a434279c3de9d82a03a2e959c58adbb38eb5d552038b28e9d80c",
    "signature": "0x57556aa8d87d332043709158a41c52faca5756b8952465a8d4b339125ad06e5c68961b1e168f154e0cd4d7626868d7364c41d1ecbc59460daa9c32dbff3386f71c",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}