Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '67658570b3a74855153d678b8523797f3a87bb793574c37609be1e821bf85929' 
  AND token = 'jPhaK/HVhU/ChdaEj02osiameS2CrXouGGNuCs6Bbp4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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