Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '45f1c151ca1ef0820a012560c2fa7239c6dece1fc1652f77749e1f6992b01393' 
  AND token = 'wYLuK7ieaEVD2KQNmGPIUVoLrXrBURWNrS2MR8bRovQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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