{
  "manageEntity": {
    "action": "Update",
    "entityId": "40456963",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7736271c6361089d0dcca1a031417dc4be43d0a92f861d2f40142ea16c6edd06",
    "signature": "0xd9776131d5a254b02733293972d25ba1f58c1a45be76bb27bc7f8db8ae5ff6b3031038e371ddc98c6054d0eedeb71b1c5bae343cb30c430634659fb77f3f786f1b",
    "signer": "0xc03B0DC91D4dd69BB843F957bAe8D3B7aA1317EB",
    "userId": "40456963"
  }
}