{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x4e8cba89227dc874ec43ce754593d18f3da0bbb64a8ccff1f5988c4b1b43d417",
    "signature": "0x0a7ae0fc6841830859c925482bf3a82f0a3c908b6de39b8167e72c5eb76ee366213c80926c752a86a69e2e7873f2603ab7a8507d93801f6054b887406b8b82871b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}