{
  "manageEntity": {
    "action": "Update",
    "entityId": "340574796",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe3d8b6c763cfb738db2e976b9e376c2a6d727a18fd75ecc15800d2ae56117139",
    "signature": "0xc8c2998833d0da65bfaa17b113eb71b2bfbb1bb40dd986760cac108bca2fddbc66dbd4181e18c971e47077621846e4c8f3c9cb549799abfe9b8e1572ad1464a71c",
    "signer": "0x93F80c25b054F6440815694Bd659B02dCF61B689",
    "userId": "340574796"
  }
}