{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301637",
    "entityType": "User",
    "nonce": "0xc429d7c3af07551e663233f031b82f863c634e6ced7a761cfd1151374ef257ad",
    "signature": "0x32fe4f14eb149f4b71e8742f0079796a2b4fbc4cd1ef610eb41d160eba9d1fa83c34dccfaa5491ad8448eb5c226166ca873d8be048f4f21339b422ab0b88dce01c",
    "signer": "0xEb46235f2D356C5a5BF3F4265bf6941D4B31e6A6",
    "userId": "984045925"
  }
}