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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '11f57045ab5e46db6694fc9983ded078d7b54a4aca239117ae43c6c0470cdd99' 
  AND token = 'NrX+hgJF/h8H41f4VOaeyIDF9QEmDqUcQdALH1hhgkM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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