{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "345635312",
    "entityType": "User",
    "nonce": "0xb1885f4946eff2253b7816f8731c1ddc5327f4aa8d290920ce32c9761753d7b6",
    "signature": "0xf5a4105bca68df5a7e55efbb6028e63059d7097013b450ad8c275a3bce84be5228b019403770749b440a241e70ae4b8dc80d90dc7a601e8511aceebc8e5ee73c1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}