Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0ae9031ab19e6eaa38e907d3756e0e784f389e53685285657ef3e5a15f464e4a' 
  AND token = 'tiz7+DsoKrgeRj2eB2jH62tE686jFSH8Od8ugR/iH2Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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