{
  "manageEntity": {
    "action": "Update",
    "entityId": "105142162",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf2f396a6823cd74f6399b7f187d922f30f4b31b56a8cdf22558b17a3c546b6a4",
    "signature": "0x5f5eecb746c319d0fb0b8d93cf18c7ec45f075bbfe39502b1b342201498f97b300d616dedbda5166daceb5da14269cebefab7631177b99da17a02b9e28c5090d1c",
    "signer": "0x6BE1f4476c70d4618B87fc4CCB9D543Af7D23714",
    "userId": "105142162"
  }
}