{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "845727327",
    "entityType": "User",
    "nonce": "0x7b717654afcdc53af8a170f37e3d05e4d9cd1bdb77818801e320b2a40ba7c1b6",
    "signature": "0x2acb6958ebb2fe3487620055213661bfb547942aa64b0f663c2392168f7d908b3edb10597ea8ec86b530951eb8e9dc9e5bd97b4beef9117cca445c48298f35a61b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}