{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1755",
    "entityType": "User",
    "nonce": "0x26fa2bb519a48cc2a91bc8de9b7bafef767fa2dfd4bb2f72641059d77ca91882",
    "signature": "0xad44da79e82254e98aaffa602bb2672f16514eaf44a68237b341abe216c27e744911fff9cd849bd9efae4fc689f7c07aa978812631d373442adaef1eee4f96231c",
    "signer": "0x16BE3cc7Ee03C75AD10a94fb7234B045D351825c",
    "userId": "66529124"
  }
}