{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "456716469",
    "entityType": "User",
    "nonce": "0xf828961f9c6645a8282f0e8997125484fa67cc31e51c6671acd1b1dd34b1d3a7",
    "signature": "0xeca76843f30bd9667edbec8816d0f704cf60a87da18a72f29224e829fb88c9bb2e8c803e7860a31dc2e5ba17017f27cd24c0e5acb8c96b0d4294cf6d28d022b41b",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}