Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd85a74bb5792448ecf89e02a9b9952a300f800482059909d14c011232ed23a1e' 
  AND token = 'JdfORjw11O2kAqcLdxiO6NDBPE6L/l0GwGWBIvqxzO4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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