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SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = 'ba32b5fedbcccd2e9e6db70774074d118952c6b105213b1ac6a7e5275fa6f51e' 
  AND token = 'uHp0DKUyBZEdi7wwP9NXnQochtDWiO5+9YX9XAY8aEM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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