{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "730839077",
    "entityType": "User",
    "nonce": "0x7dcd0ceabfcd57c507cabdaab605923beca64b17895a33712a07ed3b587732ba",
    "signature": "0x3470d0d9476a57676fcd9fa43a304aba27c9d54812b78eb4379b04ae289701011365539c3665780029149f256a632c0a39c92c6b0ea202c16bde0256b802b2591b",
    "signer": "0x7c2f6C8E39514CA33Af557b55Ae76A43850B28f5",
    "userId": "317425703"
  }
}