{
  "manageEntity": {
    "action": "Update",
    "entityId": "105606965",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierain44xsxwvtoicz6qn24xfzdhv6uwlhm3fwbs4nbappf5pfaghuyq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":733789616},{\"type\":\"playlist\",\"playlist_id\":2088301971},{\"type\":\"playlist\",\"playlist_id\":1328938246}]}}}",
    "nonce": "0x7f2f7b42cbbc7c3be429551f849ec1a0ef7008eeee646b092761cdc443ebd27a",
    "signature": "0x1f23bfbaf5429db25db77d705ab3dcf7d8d02f744d8ba486a4c9e5b4afb3847e100b21eadc81215fc9235a55a8d3259a9bfddd493013129b53aa1e1560b320441b",
    "signer": "0xD12bff0355c7503A3aC63D35B4ea27cd3D46F29d",
    "userId": "105606965"
  }
}