{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "201535",
    "entityType": "User",
    "nonce": "0x78369f28b0d1b454b482f0ac114128bea105dc6c731793124b3f5dfc9ffe9ffb",
    "signature": "0x0870f43ad721c448ab3df5eaee6675933d8f7bbf38cab07c6ac53d23fc8b104a54bbf4e484a44b912f49103e27bb67c14f641e58fed8f8c2ee34f7fb80ebe23c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}