{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "683609933",
    "entityType": "User",
    "nonce": "0xe3227fd0149b21dae5605224f4025e7255c7fd25d22a276000ebd47ef923aab6",
    "signature": "0x9a3087371143c5ec3c8358210024d2e0097866b5301f462d6c163986d001689c3ec1c93873190daba480acfdb1f93c9af92032696538d8db1adc5549dbbf6e441b",
    "signer": "0x52Cb4b468190D878a90e6d678064532b2405fBC6",
    "userId": "184931764"
  }
}