{
  "manageEntity": {
    "action": "Update",
    "entityId": "9155051",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8609a1cdcdf3dbcec6e2c3cfd5c64562ed77ec5b8d098bbbe0a1c0a75cee500b",
    "signature": "0x5dc9613a2ec1e7a69a7d6be223fa74187f098a184fa21b90c24a19c9888c48bc143ec8d7c0b84fedc5c697e4ce7d2a29ccb718617e9a0979bad13f5c8029cf591c",
    "signer": "0x87De5c8a3F01F100F42c3cc47f46EB1F97884ed9",
    "userId": "9155051"
  }
}