{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "285143",
    "entityType": "User",
    "nonce": "0xe85f00efcf3f50564ba2af70491dcd775603a03ecaaa106577cc1b6d6ad86c6b",
    "signature": "0x15207c488bb6a9d67e4036be2b6294b5a2b72d45c1df3c00a07a212e439917c669440208707ee370667ff5cecd83cf520c6d3a483b98737bc8fc95ed378bbb191c",
    "signer": "0x63EbE5a1B5C5F156330BDf810f5fFf6A224c75c8",
    "userId": "309080"
  }
}