{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "466587821",
    "entityType": "User",
    "nonce": "0x6196c71ef92e21e3e91b8f373b208a4fa57d4276c2e38cffb2659941c798a912",
    "signature": "0x79c6d85cd2dd3c41afed5c57bc7f0955296ec669755ed6c2a19301c2ef184531651b649e70379edf9492fb02804e765db30336e6af82af30e3f6af94c79b16a71c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}