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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '6d0949cdaebeb3e555ee7fd7e4a23f2207611fb3c44dc0af61807e6556f7ea85' 
  AND token = 'UKh00EC1Ns1mECkczoFRll5au2wv3+cJa+PNx38aS2c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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