{
  "manageEntity": {
    "action": "Update",
    "entityId": "314855243",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xee60fc0f9bfda6b806ce05af5d2b19e026cc5e204b58192ea6b811fa2697131c",
    "signature": "0xf8e54776f6e5bc72ec679fd45a638c471ce4873bf387343770c2530775bbf63355353077a6fa1c183cd31fec7b49dcbe084533b60ceb743a5e3ce88d18d91f241c",
    "signer": "0x755ea66DeD7FbF8F3ea97AB41Ce0977B1474B3eC",
    "userId": "314855243"
  }
}