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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '865f8662f5b2f3a130d190ff79cffcbfb7ae61d0067fc2021399d7925e6da076' 
  AND token = 'TYULqMB1kdt2VBIetO7rxYHWZIqTmgJ7xVTei0f2jzY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00259

JSON explain

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