{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "420620027",
    "entityType": "User",
    "nonce": "0x6e16bf3a1479215b872829939be390cf156b0716a24309199db77c526ceaaf71",
    "signature": "0x9963845ede43bffa4110abcee59311360f038a7b565bfdcc184ecb2b60d3f30a4f1e451162d0c398296a33de5068b6e902659e258b95c896da7f043d286e38fe1b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}