{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "358998259",
    "entityType": "User",
    "nonce": "0x5c1e9794e1b26f876a9e6afe2e41a4e63a9dc8698f7a4b1b6cf4cb41b3ae4c57",
    "signature": "0xf3446781e85964823baa12d08e2622b0b1844ae4abcc614502dc0339ffe7c04109f38af0a013bdbad8f6901b32e487378dfbf876b3aa77e1151f6ec0ad3cb9841c",
    "signer": "0xEBFDE85C480BDeC1584b1997095fEa845DcD9458",
    "userId": "269179284"
  }
}