{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "133343",
    "entityType": "User",
    "nonce": "0x1e1a58b777a22427d5fceda911cb3b46e21d10dd37a94c5b8b29e47950d2da78",
    "signature": "0x3b744382c4ac077f863310e7d9c0a2ab06c697814d91cb1408b522fc91562115377200ed32c0ba4480ea125726ede20cb9807c8814522f45f72536be555de3771b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}