{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134142",
    "entityType": "User",
    "nonce": "0x64af9258d2ed4dbc6bce8e8d4fc9a3fe7567cac65bf8fd8acf345d568acfc369",
    "signature": "0xf3ef86778dfec20e733df39ec8fb101413bd1b66ba991db9e119b52e6811ad1c4d1e81ee29b90aed6af7a403b6dad9b7770f6b23b4ec25923d69166bd5a302181c",
    "signer": "0x4d8B00657C2a3A08D362c695Ef7532cF78048EEA",
    "userId": "41995498"
  }
}