{
  "manageEntity": {
    "action": "Update",
    "entityId": "564286592",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieramm2ci35sjvhquoqhyryfjjbqtucvv3xlpf4rnplbxlvpr25h67cq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":143541253},{\"type\":\"playlist\",\"playlist_id\":1614664033},{\"type\":\"playlist\",\"playlist_id\":1644222593},{\"type\":\"playlist\",\"playlist_id\":1226395546}]}}}",
    "nonce": "0xee51c9861b9f3a8560d826e9f22c1c24b48d02f94906a213c48517bff1d22f6b",
    "signature": "0x037035e8e6637934a6e4c0a84bb801f667e2021c4b93a6dd3e78b1cf20df3fbe29161e9e0b1267a9b2fb12147ea21367d3219ab1761f0d6ab2631f7970e28b001c",
    "signer": "0xce9d3CB083961774e5D1e0cf9287da5d8Abc8929",
    "userId": "564286592"
  }
}