{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "571117272",
    "entityType": "User",
    "nonce": "0x692a92640d8814a070fe7d496665a5a7765d34faebd4aaa55e630dfb2625f857",
    "signature": "0xb0090b9bcac60fb5a97581eb1cd23dd96e732152d3200051917bd575c5f6054108165216696ad3cedcc3dcfe168527e8bb6cca68b5f5f3c49255ac2a873939631c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}