{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7676",
    "entityType": "User",
    "nonce": "0x0e55bf48de9f7aef049177faa44be726bb675d0a8e55336d015c19e579f7b36c",
    "signature": "0x09c7e918c5a30d99c5c708052864b0f72b7a388e59ff4ea957134c45cea2d5b000962e3f4ba283ce72a1e0e258bc96ce6d7a36ee51d76936897587d211d49c9b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}