Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'dad1ca3c8084eded71252d1a0b41978a0336984c0472052f34aad785dc3913f4' 
  AND token = 'sbdTF6B7DyFr12rnNFA/Wx/2ebFuxR1e/wUTduettcw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00057

JSON explain

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