{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "193389",
    "entityType": "User",
    "nonce": "0x95fb137f5911e63f40eaa56c0d00ee7cede0264e69499a2bc962a444b4fdfb53",
    "signature": "0x0db11005edcd65137f2f7f1b8fd97e870d3dffcee25c98e94b848184c86ae796730f255d89ce7e134a4ab6e4906dc313368361bfbec4fc9718eadd4e14c751571b",
    "signer": "0x431a8970A74Bd0a1ec463fFa0c61c44F0ed9249A",
    "userId": "694445188"
  }
}