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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '45d55433b2cab8705c84dcadb3cbc85d69b4deeb4596898ea1fc7dba7da5cf65' 
  AND token = 'O5+/B6yo7UnYqy0EB/yB5iIqj0gStIwWOuP5ZK5AIVY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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