{
  "manageEntity": {
    "action": "Update",
    "entityId": "54166466",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierak6g7ihyvyb6itd4qotrfyel7kd7nrxwki4nstdvewqzdzf5pxuja\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":323987660}]}}}",
    "nonce": "0x0bc5a565e6e16c497d638ad017bc7eb27b6d14e27e92202b5b8afdf86a2f554e",
    "signature": "0x054bdcf6a265123faa27be185df5511a3dd186056181de891153a227d067e2920c2812f09dadd023ccca67376c8595dcb790da23bbf9fe3f0ddb7f88e550cd931b",
    "signer": "0xa185Ff45de6FF68eAa1d7ceC338cba250810134c",
    "userId": "54166466"
  }
}