{
  "manageEntity": {
    "action": "Update",
    "entityId": "864530018",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraezsbg4zjxtdy6ajojuhwkshxoefsgkpnp2zrr67p6uodu75zi62a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1742093109},{\"type\":\"playlist\",\"playlist_id\":836667750},{\"type\":\"playlist\",\"playlist_id\":556310379}]}}}",
    "nonce": "0x3ff408788bd63ef263b7f093cb1944e6edcedd7d84a5bcbe24b2f580845f31db",
    "signature": "0x94d56754bb1752823a85066a962134569a026d0ccf93a90da8226480348d2b752696e9b366f0c1bbdc45e53ba405d0e4b4ba65502016e281676d1b137f1edadb1c",
    "signer": "0xeDE6cf2daA6681F46907C46194f3142e0C9ba4c0",
    "userId": "864530018"
  }
}