{
  "manageEntity": {
    "action": "Update",
    "entityId": "525733781",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x763cc2f725501205602329828444f1cda6e27c7bec96e9feda3ede495b4701e2",
    "signature": "0x44a9dc91f52ab82446323331f73a323955f94d284a21a347f5e3f713fe01f7e900111355ce4de5a0bcc12a19ac02688fb91002e627a0fcf93cd9470fc97f4b2a1c",
    "signer": "0x017154044C3B69e2acD09EB052Fab247Ae5BEA16",
    "userId": "525733781"
  }
}