{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x3914d3c34545ba02d18db765488670b7f7bfcfa431a703e6dab58116d6ca58f3",
    "signature": "0xae8a3b0a9b8ea7592eed1b3316bc03acb3939a294090d066ac15071ad12a179e0d0b45707f399e4fe557498c97489467d835246b2ac61ab409efb458989af92c1c",
    "signer": "0x1b3E9Ea15dF71Ced48bA8E493c9BBBcBFa25823a",
    "userId": "913385866"
  }
}