{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "344861033",
    "entityType": "User",
    "nonce": "0xa68454e5322513b09931c3cb2c08f94b46663612cd2aa89702560c96349017f1",
    "signature": "0x81a33d150fb9c2c32c487474c0f304cd3099ec6fca15ffbd99e574b40e95e4be493eff2e0d11be25cef425fe09ac473ccf1d1b80fc422f0695ffb6a1a40ac09b1b",
    "signer": "0xd6F1269ac846201d7f6d5574279594D67A06bBb2",
    "userId": "624634439"
  }
}