{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "316453252",
    "entityType": "User",
    "nonce": "0x519c4575648ce4443fec2f7af1f638262109ee7c1d8778c7d7d032182ab97466",
    "signature": "0xe22c29f080bba78acaec103f38a68e08018257e160a826748e6b9cfdb6e62e3b518a9d8ccbf03ae271e8b20e07228800211ec41740eaecfbeaedc747098f8b2c1b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}