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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '63c746e176624c7661aa9e215b9476ed64907e7d00d11b8b64f4e28a66202dbd' 
  AND token = 'WIV4dBOAVl5jf9zL/0QF/S98vSnDnNnDhsmfaUV1ITY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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