{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "742907554",
    "entityType": "User",
    "nonce": "0x522bc1bb393edb69f58e99bb5dd86a7c791f4d82a034739bc49eb2ca949eedb8",
    "signature": "0xc0a9a59e656cab3d1b0929fe3bbdaa70ddd32ede83f6aca4cc8632086b275f7c0cb0db3aaa9c1b7d5f3157a40f42adc07a7857234bcdfca8b4fc2a843d5375111b",
    "signer": "0xe6E712784AE218d79b91dC3A03A92FF0cFbd5a17",
    "userId": "278611500"
  }
}