{
  "manageEntity": {
    "action": "Update",
    "entityId": "431093315",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera4aylp5xwak4rtpskcx2xz2zte6fnco47lichozu6brg5h2z5iblq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1147318116},{\"type\":\"playlist\",\"playlist_id\":240086092},{\"type\":\"playlist\",\"playlist_id\":1986003012}]}}}",
    "nonce": "0x2dd534c68b8d0372696fb38710ebd7752aa3ed9a4c20a004361c1ecf63fab83d",
    "signature": "0x784df9c5239d22601ac1d5b2cfe76f6949375a9822dda3b66588cfe7a71a527373b94821f3a17c5b79d7ae7dbd89c1e27e0aea2fa55afe6ce577b8bd279dc1151c",
    "signer": "0xC1b01545cFB07eF93Ea96354a43eDfCCeA1e33a2",
    "userId": "431093315"
  }
}