{
  "manageEntity": {
    "action": "Update",
    "entityId": "729344507",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdb6bde4b746065be51db81b74d3cf1fd9ece4647a97c8ea6f3b102bba23d12c9",
    "signature": "0x722e6b111b46b75d2aaee9d7fbbfd63468cbd5c643309d639006188aa23eaf972ee47023fdfc3b95f78e9ed8af2be07ff1bb9f99a253c3257db92fcef3ea14de1b",
    "signer": "0x02e15765C61eDed8E41cC3ECE6C97dEE0F691c98",
    "userId": "729344507"
  }
}