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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7070975bb3eef23c795581cf5c188a9b023760e6bd89867b23c72884333cf9d4' 
  AND token = '/XKXpD47tCjBXN8oQhRLviqhH5eRTwt52UjDKlopB60=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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