{
  "manageEntity": {
    "action": "Update",
    "entityId": "6270901",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0c6869258018f777a7e10399d8c59007f5617a0bb1c628eea04648fd89b9d503",
    "signature": "0x4bd8144444d2aa391ae27bdb8f4869a794e7f7996e6894b73fcf548f49e900b5103c6ee4ac7f8846379fbc703bb1ba54d0bbfc76f544e3881a5702de77c24a1e1c",
    "signer": "0x175A3bebFa14E64C549CAc2962191B2B8C788421",
    "userId": "6270901"
  }
}