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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7547a524933211560d42b310003166f6e4c8cc514256783ebae9312cf3f4c558' 
  AND token = 'VQzOFIkwvUpxsO2eLMlEVRRHaJOU5inoHW3yp3+NeUc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00189

JSON explain

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