{
  "manageEntity": {
    "action": "Update",
    "entityId": "575702759",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xad08cd255bfd63605007f2158d49bd158da12645883bec1715745f315612644d",
    "signature": "0xc65f8000475459de35ee49326876d8a391e30442a38f2f3847818fd21c002046139e18cccdbd9be95a81db40ff6fe521f2ca1a597ae6a0cf36994eee4422c8651c",
    "signer": "0x12465F46a81eDfE760a7326D21Bd9B2022bc4a8B",
    "userId": "575702759"
  }
}