{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "665",
    "entityType": "User",
    "nonce": "0xa98325ad78361f2d07daed4fa380f3d0429df7be9fdb0dd109e91f33d2e0ceed",
    "signature": "0xeace90a24b9f311f36b00fae1cf25eac6ecf3fc0ec73726edb2189b6d71dddfe111f5712025009c2cefadd53b87f68f8631ae9c6e45a375a84b608a98dc3eea41b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}