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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'eed69a23335df5e6b95c99bdfb4252571ff12559c547a06bd41db0272192323e' 
  AND token = '/PgYUAaHlwKka4VmfnEaHsn1/Vtu9Y8l9//BVv/tl/k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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