{
  "manageEntity": {
    "action": "Update",
    "entityId": "104356898",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieratz4jpxnj3lyt5thnaec2vxaqbqueonqum5knilkst5zolwfuwvuq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1807508846},{\"type\":\"playlist\",\"playlist_id\":1022002330},{\"type\":\"playlist\",\"playlist_id\":464624615}]}}}",
    "nonce": "0xf2b8f2783ade3e679f3c9022e91ba763cdaa50580dabf9900ce959d2f535ee8d",
    "signature": "0x644e1514d456631ce2535a0cd5c71a1b062a4cb293077438ee9170739e2383fc2bb6cf8eb0dc5818b0efbe94e9828dcde80c0e115c30b8734974e3053e7d182b1b",
    "signer": "0x800dF7e18763D55aEFe4f7FE2DbfF25ce082d662",
    "userId": "104356898"
  }
}