{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3449",
    "entityType": "User",
    "nonce": "0x8c1ab1a776befb964714157c1ce6ecb22d7857386a6059b248f03502c025b797",
    "signature": "0x2ed9e3df346b90ad320057734a33506d60cb95719a0ab690bc02e09f8635899f4b8a199819f8a887e11d886e7b0e65dc613061a9e0910381abc4d1cdf09d26f71b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}