{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854498636",
    "entityType": "User",
    "nonce": "0x3a38e580dfadac2f834d318cd811cbba438a060bcbc109fcb03d6f886d15f0ec",
    "signature": "0x9649587d2ffb437cd6809cc17c5cad59f5f2ff63a71171eac13617512ffa1c994822366c2cf3f9598b858e4a92975cc3ba8c4ddb4b86839a041c4319b2854ddf1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}