{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55529",
    "entityType": "User",
    "nonce": "0x9cb6c8354a3209bf830b86b8f7b56e7c71e451dbcf59752871e4b1468a163ae8",
    "signature": "0xcf0d0fa068439ea07f929f6e48b19e6d14ef531f6aaf1c6f5b02d44b176794f3236a9b1651312128c7a99a63633eb33692e7deb5fc61f70d66ba65dcc4f04af41c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}