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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '739e5faf8f0bb4520d745e1a3f1f3999f607d1b4a70f450cb7ad51515407b0cb' 
  AND token = 'aphE0buEpk3bAi8Toavi457CM/e1UrGXrFkkAd8g3do=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}