{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x90aaf0e5140084bbd33b2bf1d251b4f38eee49fda37053ea47df11e9d2ac5c6f",
    "signature": "0x9593c3c08408f3393a7ab089387904730dc0c5918868245454b7c0a16eca2d8b76cf326b2a0b7421645b4f58dc8e5a01afdb53530a2a3dce72cc77f2caf8c9821b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}