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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07ad5b5479b53811341b7093de272d5a5713a65de7a196656680e11147a984b7' 
  AND token = 'wLXC2a6FW5L2d9x27VKgL9FS1Ef/cxKOWnK3oAPV6YE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00052

JSON explain

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