{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843421708",
    "entityType": "User",
    "nonce": "0x9f1b650736d30373c0a7cbce9bae15ec5db942f49051e17d0d247041b6d963a6",
    "signature": "0xac096cd567d5c261fd8babc137e6e37f71eaa396766fe79572c5c04e8fb829761549dad19b971b9c17612aeb3ff7a0748169de19408855c162d5d3f904eb33a91b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}