{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1471974",
    "entityType": "User",
    "nonce": "0x303c03808e762434ec93037a81a86579757e670330f981f6886815d88d2e26d1",
    "signature": "0x3e8ddbdf1e2aea4b3c81bc5ecadf958e3feb630d4cf6f7e62e10e5725809090d36bee2bc9ddfbba9b4fed9a118eeea254eb6d6ceb3ce154fe6ce4b88174265f91c",
    "signer": "0x60824E42B28a3C9D7A9eB6A6feFC1cfB7B41F7C2",
    "userId": "914462657"
  }
}