{
  "manageEntity": {
    "action": "Update",
    "entityId": "354227603",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x26baedad11a628b30571f337da5aa98b95bd34772774e7cca7e645f35f2de3ac",
    "signature": "0xd99d6e8601758bd5f7f717e53a871323e997058f621dd89a2737aca1660f93f4532d6cf4fc3e71cf42445a8e76c876d097016b19ccfe7b6a5cdb7d353ebbeb191c",
    "signer": "0x79cad6fb9ead68f49f798fbF40E190476FfDd0bD",
    "userId": "354227603"
  }
}