{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x0120bb41b945d41895db8e0eeb27312d49fc41b8066423715f3ea495e1dc6bdb",
    "signature": "0x3667381f57b106156cd2e338d50dacabc1531fbfc5d7cde3e4e606edd9392b255a1e9eba6baefe8fed2ee4316b569b14ac694845d8ba27a2b27af00b76b87e501c",
    "signer": "0x85b05A5e7cF0feBb14BB5feC1E645dB5151F8e8b",
    "userId": "104634770"
  }
}