{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "754884",
    "entityType": "User",
    "nonce": "0xfc5ab8065dc9085986853025132e620e03090a5406a0165b3432d4ee552dfca9",
    "signature": "0xe16dfb32e56958d03c8b482debf10055257e19858fede196a0d38f2e381550e56c290c0dad5ca043ea8991b08803dc8cab237f96d43670a51a8bbf105ef614401c",
    "signer": "0x6fb79570A836Ea8554ad1D745C12769B22f1e4E3",
    "userId": "283478"
  }
}