{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "665370465",
    "entityType": "User",
    "nonce": "0x3e6d7a457a9016c3a130de87ab9426dc54776b2d16bd99ee6000787cc69f767f",
    "signature": "0x5a9d1b06bb2def3e9cf17e917eed328040778e4e0bd6792429b06a91440d077f1ad3e6301630d813a8f517c240f88f95d463303a6bfc1702459c6432ef13221c1c",
    "signer": "0x52E0361aD6F17b443a903f96dd5AA2Ca65020AE4",
    "userId": "86640190"
  }
}