{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104769376",
    "entityType": "User",
    "nonce": "0xde2dc6e4f9c225287dc282d8c5127f711d88c3a5c66fae32c93859fb4699cad4",
    "signature": "0x592b93b06a5bb8fc0f5e0b8a9971fe60e44f3d04de34673344107682ff48d05039d55e5ca8201db11beac5ec30c12fb5d96d6839e725d63ec7217827274d13f61c",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}