{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1722125",
    "entityType": "User",
    "nonce": "0x2c5ee5e2185f82a654ec17dcd86a81af2eba87b55d29ba443411d957cd58ad9a",
    "signature": "0x4b91dfa8bce098890125e304ff9c80cff0d94514638d346acdcc4f64dd76b40a6b26b567c6cfcbbaf1227fc5cb7caf4b0bdc6e5739ded3a795757efe288136af1b",
    "signer": "0x641D58d14cccB895cC85f210F1CD2B998A692F67",
    "userId": "308555958"
  }
}