{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "620307004",
    "entityType": "User",
    "nonce": "0x7cd7a53e0a56b3f2576612d82d599d7c40ed79923baf690f6f1fd601e7de4236",
    "signature": "0xa54f88ebb0190322c3ea2c57c43e5255d135fdb693e058fba0fe6f10ae241e3b786fe07dde79413717a568ca0bdd4f658116b999604176bee9782bea506f8ece1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}