{
  "manageEntity": {
    "action": "Update",
    "entityId": "730129542",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd62a551e4b91ff78faa2f90f4236ad2f9a498ac2cfabfbca81f72241bc805bac",
    "signature": "0x7f6e2dce7e5ed674d78185048e4fa812b7515054734f2ea528c1396d9f7eb91d3d1fb41d7cd67e712bbbbaf44257eefc1c4a1009756f3afa363189fcd67df0091c",
    "signer": "0xE41FDb043346Bf00e1B535bBEB854C94ec6cc0a5",
    "userId": "730129542"
  }
}