{
  "manageEntity": {
    "action": "Update",
    "entityId": "365503940",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbee41bd9f4c49be544ef0bc155d82b7ecfdd72e38478d3b7ece1ab1b87a09450",
    "signature": "0x86d0421cd5fd9a4bb964c596b3653d52ab5f9208917dde99bbe58504e3e937fb49f363ac793e16cb72a91f9f60ad2f943304494ebf3ae866e69681e33f3e9e841c",
    "signer": "0x115FdE94990D7AAb2784D373eBCEbc3cF1014bAa",
    "userId": "365503940"
  }
}