Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c318d37757c5f235ef8b5c46989888f3a736a080fd5c7fef1345f631770574c2' 
  AND token = '2BlP15QJ9Q7TEV/nC5kBY5MdDmNNLUtENmZKnSPTA4g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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