{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "674873242",
    "entityType": "User",
    "nonce": "0x9a0250beb8aa55f70af3f68c933a73c8381bbc1fe1368ee2a974178885472fe2",
    "signature": "0xc86c2db80a2b9df01c4cb707f816896f55e455ece61bf7d5da26ecff8079941b7b7bfd1410de95a37e27294d00cb078f27e03f5e61b91e1653ae5190d89e9b341b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}