{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "196740",
    "entityType": "User",
    "nonce": "0x56a80d1c3981ea987f97b9f0aa21917797488283301319a3c795fe00c7010243",
    "signature": "0x8739f5c827d5c72344d743cfe974604223ff531955cd3820b7e34e5586e7fba03c68bf763bb8878100fe51ee170a9daf2d1ffcda7684c9047cc69da9b508399c1c",
    "signer": "0x29DA29cFDe586469112dA8593Fcb9B91e30468e1",
    "userId": "121018469"
  }
}