Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f611f16876a87b569f0c06ac0fc43ade1d6c0462404427f2c8534dfd069fadbb' 
  AND token = 'gODih6zhVicW2uvku79G3rEIKSKAOsAB61QhzlHeoSY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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