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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '86d3f1f861908e0760c071cf89d1c4f5bc6dea09b564e7133f9a60131cc0210f' 
  AND token = 'wEoY09cB5XDg7Us0Kz9lpR4QIbyC8FT/tRPmNI4pJYI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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