{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74388",
    "entityType": "User",
    "nonce": "0xa13e2b1b641dd7f01d6520145c339f6dbbee16be37f2691431ddf2ba1a70dd81",
    "signature": "0xdcb983d2466146ae8a4c17613e87598c1e7e9cd6788cdd531eadea09867db23b69453487a8051d9f05d3b3e67fc00905d31a100432f0039d4c0d7e8af853ed401b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}