{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108817",
    "entityType": "User",
    "nonce": "0x800b5c670b78c3c2bad69dcf66168751b6e75549cb5ecac5077b885a15a08afb",
    "signature": "0xb5ba51bd686e2ea0f9f9f9d25baa22c5fe0543eaf7b096f398f0beddec0199bc182d1dd7382982dffd0f1cd872d7d691e5e842f15baa9bb296a5de4a5e1aef841c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}