{
  "manageEntity": {
    "action": "Update",
    "entityId": "13351015",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb125563b048b401afe20f6f1b62760ba275d36d969c2d276150b27d60c19b2d4",
    "signature": "0xc76e35af533b041d1e5a79e459f272768c500a92c205eae9308e13402fcb1b304d31646f37fd0dba347b612561d2f2db08b2619d093df0b6883bc3dcb0c79d901b",
    "signer": "0x9c96F453Bec352b9fB7c25692d528492289601C1",
    "userId": "13351015"
  }
}