{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42340",
    "entityType": "User",
    "nonce": "0x03a07b0aada909438a9b3be846e5a2803a32fa387287b1682ae7299768aea117",
    "signature": "0x70eabbc1eb8c44b1b552c35a92cf6b9684f1513bc4f0ee82461dc5778fc463615fc77d50442537b6a2dfdd611666014c439e62fcd2bf60dcfe3238db274255db1c",
    "signer": "0x3bF1258fC69C58D6B191B7872B2D087a37900E66",
    "userId": "347062615"
  }
}