{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937679346",
    "entityType": "User",
    "nonce": "0x0c6255281d51b00841647b84e45ae48354ead9bdd5c471da603b62443521182f",
    "signature": "0x6493141e0c9a05782f31d80c002d2d96145646db7e1ec9d56d93040571a5a00c239bda9f1b1054f24f441ae4cf41d4bab6a55e02851bf0a8ea859d7d133b302b1c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}