{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "605664979",
    "entityType": "User",
    "nonce": "0x57dc31e05471e7485fa58bd039cdae45d5fc2b38d3aeb3f3fce7cc57e34bce00",
    "signature": "0x7d5c3e98e32d9d07b0bd321ddd7285cd6f677f000448fd4d12ac2f97b1f3943e40d4717750fbfac561225b895648cfa293bd12ad1b86dec02185570612c003ba1c",
    "signer": "0xcc9cCc523005B394381478381D34DddB8558A28f",
    "userId": "957873025"
  }
}