{
  "manageEntity": {
    "action": "Update",
    "entityId": "149981829",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xccbeabefd7fdc24afe0e07a0087331bf1e783c2438f81badf6cfbc3f1ab1e08a",
    "signature": "0x1804eb5dbca2608df4e81b965c0facc62406a997fbb4485725e287dc6ebc3157629dffdf39b325406f5ff2a3bd56244541f7c859884dc973725bd5319b6201141c",
    "signer": "0xd6d40d6b3894a585d401FBA9cF508E31121E191B",
    "userId": "149981829"
  }
}