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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7195405a279215eca604d575034b0237595e1789a3878df8e0daa22abdcf819d' 
  AND token = 'RQBK73PrVgSH0sRAwKJpjRnJ7cfHhSZ7X73jgMSkFZM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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