{
  "manageEntity": {
    "action": "Update",
    "entityId": "576049552",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2934ff4a2df85de5d7ea9e0c440b6f61bb0a8dd638952bfc651b7c7dfc35fee4",
    "signature": "0xc6456c364457d03dee457ff15c0c365d9d9195b52f4024ef871b781a1980b4b439810f5be2eba802c3ce08289281a480bed926ebd1d19e9206b56487f2bd1c291c",
    "signer": "0x2198a0E369C40cA5ECDa0be3166055FCCb14Bb50",
    "userId": "576049552"
  }
}