{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42896",
    "entityType": "User",
    "nonce": "0xadd200bfbdf6b467f652d3c9c2d228e163795b6ac3bff55912d1f5c661816c8a",
    "signature": "0x835e669854fd3701602f95437c5de6ab2332cc3d0bb65cf4094fb277886bc0be6407f6867ba28b3ae752fd7575dfb3719b271ef1e5eb38e5be2631a007f03f961c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}