{
  "manageEntity": {
    "action": "Update",
    "entityId": "842509080",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xde43fd0139708cf0d9f84b7c7d079e8b78135e56846f30781f5b56eed72a781e",
    "signature": "0xe38c99a30070b521abb8ecef5ff20bb99ea05a9a5650d469c1d84acc160c3bbf646c3a6ac90b77003b3af0fc5dbf48c5e5b687a29d273d2a3adb1b5852b1e3c01b",
    "signer": "0x216825d141Adea3A0A5a65aD345DB831Df6fF225",
    "userId": "842509080"
  }
}