{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "735209",
    "entityType": "User",
    "nonce": "0x585cd7cdf155d96b965ce459947401c24e220169ed9af338d47589b899310a88",
    "signature": "0x0a9b013efdfd4cf309359188f5fcb949cbb05af7a610ddce809d0b8287e0065e1d6fff4d5f858bdc1c76977cf20adb21b2963a0e69d7ef0ef68374942a15e2741c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}