{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x49a964ede51e5b81bac99137f769a9026861da8843a6289b8758048c1777b205",
    "signature": "0xd19565355ffe8a3ad2b31fe98f7626a21b7ef06f1035d49968b06fa3bcf7ad252e040f0f498ff0b6b380bb6d8c0e60339ef81daee2064d7601d0a5f0e2eac8db1b",
    "signer": "0x136A4e19270387bc21d7e58a9592D46864B0Ad57",
    "userId": "956002390"
  }
}