{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1730737",
    "entityType": "User",
    "nonce": "0x88bf99401e18e9e32e7114b68fa897f8c1c4e7c44ab9d15c4d34fb987e5b3ada",
    "signature": "0xddf617b21f36ee4e91cb81b442a69594d50263733fb3239703279f16e056e1f953cd68e6e8f4773a5cb78120560fc3aaf87cdeeeca04e367b32f653b3f389df81c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}