{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "747576419",
    "entityType": "User",
    "nonce": "0x85eb1c22c664d6cde7ba5185e22c76feabc89ae41950ea20da33dff07a23fc73",
    "signature": "0xdda0d930439ade80c3abd82384462c493cba7272f225952d6f09399803da366f45ae1d074680ac3637f01ea373602494a45fcbc7c9d89b0fce88da41e688618b1b",
    "signer": "0xA73B48f4636A4B083cB0a781FeEB6b33cC5e3F8E",
    "userId": "141545704"
  }
}