Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'c4ba856da232fadd3d671e0fd441abae2e34ec86bba00e5211604e87c3734474' 
  AND token = 'xAicJaF9+yk5fgOxW5TPV7Nu/vrs/KP2CPEfG13OeHE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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