{
  "manageEntity": {
    "action": "Update",
    "entityId": "422224833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x717b80f9937320184b20bab674f170495407a7417ff7d742f4abe7d6baa45a14",
    "signature": "0x8dcea0761d1b986a295c7ab073b8607602231e23adb9248b8952ad3e77bbb5b71ee3bdd75a402073731cd92f25da769dd801f848a1aa881f4c774c27b9c70f671b",
    "signer": "0x87DEF2d0bdBC6C675ddD944d18Fc96841F8BD231",
    "userId": "422224833"
  }
}