{
  "manageEntity": {
    "action": "Update",
    "entityId": "908696475",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfda7a62fc24bf1717252437c20843da2529b24e580ad57d3ec03e8a617aa5258",
    "signature": "0x229fd1ac229ccd577235fca3b31432f546b7b334974f931a77786ff4e11d7f7f715e7144232cf2b6d983af4c5cbafe0693b821896496346681a5622817e25bd11c",
    "signer": "0x108D612Ab8b098Fb5c1CCFc861D8531e2abE93Ca",
    "userId": "908696475"
  }
}