{
  "manageEntity": {
    "action": "Update",
    "entityId": "162770660",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x02bbb232068393e95ef06fce7ef7df23a483b550111da4a347f21d7fecd19415",
    "signature": "0x3cbca78004fa19773dad1eb365ac0e9435ab699dfbb14e9cbf152fafeb672cc87619366ff16b1e6d50d02bd64125d9b604a0ae292fc296973dab2888d04f6fdd1c",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}