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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e10078efe15e8c0e5d21dbaa542190a54b8aadfcf8b8380b47fd5ffee416bf57' 
  AND token = 'p7oYI9toRCE2g73dzx3dOIDlcy1Kt9dRtJ/npi5Rzso=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00051

JSON explain

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