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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0f7f9cae8529c8462c6a0c4abc184dbe994cc1005fd34c33e0eda0ff1982e61c' 
  AND token = 'yPVehuJ9KaP75G2t0O2rjeOKrBpN0W7nXB3CDqI2eA4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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