{
  "manageEntity": {
    "action": "Update",
    "entityId": "687605395",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd31ca1d99a8fb256deb248de4078c1fc3b2f3d1da517efd7d4ef42ef50877563",
    "signature": "0xb5451bad582ac1175ad7eb0f78f4b381b378d924e8cf3ed231237334e2828644130341b3d289d85010bd1e63c071b6d1ba008853dd123a7226049d7414431f181b",
    "signer": "0xE332434EEAD275569bfF055ed558704b8E56dE76",
    "userId": "687605395"
  }
}