{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "680645058",
    "entityType": "User",
    "nonce": "0x0983705fad713b99af188037ee4863ad32f033f402684013acd2719597c73db3",
    "signature": "0x5da5ceded0175237ecdb6efc5ebc4b61c5bec092d042173f9cf75c279457efeb4b0dfea1a21a7f0f7169ddbc1f7b5eafcc621748f7a88ca758dab6bb934a77de1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}