{
  "manageEntity": {
    "action": "Update",
    "entityId": "914609187",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieracmck2nubdfulwwicuihixr2tuciqpc53og6feukoemusqwdc2fya\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":371928712}]}}}",
    "nonce": "0x764b63cb01c78cdad06d1e7e9d49f5db27ddfc6a4ffb0dbbbff2e58e0b4f619f",
    "signature": "0xe2ef8cec87ef79e4952352c29af31eabb4d4330e41ca7d3fc57d84882987c14c47339a9cf92b932197097883d5b0989871a7ce2d2495f9e4641fcbe733579bb21b",
    "signer": "0x87c0f00e61446Fa4c0309Ce11401a975Daf6586F",
    "userId": "914609187"
  }
}