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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c7395f6069b2a5ae9d0cdfdc9c5093ca3f3106e6c537a2c9f47c417012ab970b' 
  AND token = 'Y+Mpb8Q6Co8xTaepJjtdAtUq+S2F1Nq00JjZFQy+/Vg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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