{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916060975",
    "entityType": "User",
    "nonce": "0x3d680a38443464cfd146cf6602b0e7f89bb060996a0cc92a7d07ea68c2802e70",
    "signature": "0xa0a13c4131fe2076362a9f956c8a61edc68b489cdafb282ab4b980ef770a40426fa579ed4246c5a94afa9cf51519b99bc51335653989eaf9949a211615d79d3c1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}