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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1358f9d254c198f109ae7fd062cdedc6d5e59c7cbbcc374f7fc19d6eda9d94ea' 
  AND token = 'qenjJquyYW2wZPF3Rk/S+7o0akrxg70as4R7EWTDro0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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