{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xab1af254d3c6c205bdfb21eec17db15fa58dd9ca95babdcbd011ff0cf47babef",
    "signature": "0x177b0c786bd08afd9ad6e10c17d0bf9e7576ef66b3ca8b7acf3fbc1af00ef41d17e86060ec8951ab07ce32d63a1d53e9127184bfbad047151bb7ec8f3b04b5ca1c",
    "signer": "0xb6B208a8f79b1D88d245afa5aDB0a40d38cd6DD1",
    "userId": "528688046"
  }
}