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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1442176078b24c7fb995959ef06260ab7b6184b6f4887c577031b910921e0126' 
  AND token = 'uyKosYAibR2VfN8FIr1Ex73GWl0cwSYjPVY+h4tcWrA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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