{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0xc3a61a7795981e665559f259164a958c3176a89b4f7e28be5a1ba544a674bff5",
    "signature": "0x811bd02a85a3ef72b8ee66480dc200bacf77ccb815a5bac20a3ad4bfd9353c9d299b6ea588a14bab4e7915f2b2f6494cbe9e3db72c59b0b9fe14df082741081a1b",
    "signer": "0x71A8b6263265F31bF93B5519CF3787Fa4A56e96C",
    "userId": "268524960"
  }
}