{
  "manageEntity": {
    "action": "Update",
    "entityId": "102202598",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x810ee3eb2dc8f741b2ea2c7b2a1669ba8f72954ae7926ff9960cc5e4c8407976",
    "signature": "0x3c6de31d3a043e765170df5d037528424c272598aed4829f8055111c80b6c70e62a7e7751fb9ac4ad2ec5f7ae49ee0df8d71c28715bea1cd677b363bee0ec7751b",
    "signer": "0x5A4a438EB48E0567283E8B2Fcb511DE3cD0Da231",
    "userId": "102202598"
  }
}