Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '7428ed101e19e44fd4d9ba8125c4faf2b4dd66afd2ff7f34e4a99d13f8803154' 
  AND token = 'fD0mjkePbZtN4xDcqI2yUbrxgnspK05uG22Q6JZjjt8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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