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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '9bdc07d4afb10ac5c0a98298328dd24d49c43dfb7a66342f0a72ea85ca3d0612' 
  AND token = '9h6dfJsERXd26m03uThBGFeNhohxup9idDSYb7tR0os=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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