{
  "manageEntity": {
    "action": "Update",
    "entityId": "328056745",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x215fa3fab61708d4301df67fa015fda7d2c1608e6992bc7ca4b90d2c3f49cde6",
    "signature": "0x983d7e15f23ae67b6fe674861964ae9d49226075468999fd7bfdd276b78a2a4237489af10aa29291e385bb2002e5025bc1dd483b78d875c10a95d790e1bec3941c",
    "signer": "0x75d782C5a68f76DfA69c426479B6ad14383D035f",
    "userId": "328056745"
  }
}