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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '09830037ea77b9b915a738cda7bdf78f74e8d16bc54037eb3a1060a6915aeec3' 
  AND token = 'ONn9H41VgP75nSJCWdW9KZpzjsvvXc4vd7LGMD+y6g4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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