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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd69a6433956f6f2c7eac4a78f3a9b224663421fc5619472498ee4f0a5c8508c3' 
  AND token = 'IyPdHoH22nrlpO6CVHpbm1hBPcsBOmC01LEpeiJjFOY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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