{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42216",
    "entityType": "User",
    "nonce": "0xb7ea7861033e7b1810aa234dce0929d3c775b1b5765965e2d52744391c9195ba",
    "signature": "0x01e19cb1e1a15a29eb9cdb10d0a01df362214e9691093fedc26c21ced84b927f72d6b9415de7ecf90bb3c042c5352477edd38ede6881d131be2cc22edebff5fb1b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}