{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4baa766ceac9fe1f76d15a9c0a033fde0a93dc7fe5707873003f4ea648934abc",
    "signature": "0xed63408998d69ab96c2a85db543195ea28df5e4509d98ab0851ebf61762d292d773e2fc50595995a867b036ce37097ffe3fe9091f241c28823e5380b6d0e0e2f1b",
    "signer": "0xC09a05B620D1Fcb2527e76E5Cc0dA5229572d8Ec",
    "userId": "794272486"
  }
}