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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7275d9622f0e7279645f01464f8dfa3944f29bf22175ee3aa5205ed9b169ee71' 
  AND token = 'wi3Jth2PuUgFS3w/sclZypYP+ZirfO8k8bC33oyYYOk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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