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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '60077f45360ff7c1f07d59ec6fbd3df143166428519b8e91dc5d6f2ac286662c' 
  AND token = 'kns5wf8sYW+PGbRlnH7XnzBo0hJWk0B+FHT5BfJ1xlM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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