{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "474901",
    "entityType": "User",
    "nonce": "0xc5dbe974c6995db3d561ace458c20fbf12a841ea56b051eb7fb50f0708436d1d",
    "signature": "0x87370f9588d91b3269412ffa4bcc5bf39ae26d3a28c028df9b2e9a9c54cdcba00aa4fcda3d31fbd89ac8153f5f8b3d4405523d11869750f64b82a3d0c339266e1c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}