{
  "manageEntity": {
    "action": "Update",
    "entityId": "335615768",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9a62432d38f0bd8223f7cd1e70db89eabf2c98f73fb110db73b9047695a3a96e",
    "signature": "0x98c5c76fa6258237a88a85ca82b506c8fdd6720cfbe84e82e866ea5b8e5371fa5351563870609ae838164b20a48a65edb3474baf145cdd0d75940a64c03863281c",
    "signer": "0x89e7FFf4B1ABeaEA5da469dA775a30CC9a039C68",
    "userId": "335615768"
  }
}