{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc7ea9b98d92ed14dfd7ae1b7bacfeda58c0a5b727212529f72c02e88fb9b1afa",
    "signature": "0x7c9f4a99eba4c5cd6ed2b661fa62b45eece3204394fd40a27b149cfba2ccb7a47874210a6ec66c407496e73f6f4592bbc5347e30514d91ef969204dc4792cde81b",
    "signer": "0x995Ca8f2d3956487967aCfd7EA849313C448c3a8",
    "userId": "227564"
  }
}