{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6b854c758737cb643b893b49cd355f4ae510aee101ddbc8c53c131efd4aa41b2",
    "signature": "0xb63772bb65ebc21890607cb397a6c466c62502d0a97df8a0a899b788263632244d2755427742cb9dbd3ae2a6909531aee125f7584860c683b0d16af7189da3091c",
    "signer": "0x54933Ff83b9B63153106F96bd0e9775f32d9dF56",
    "userId": "630676735"
  }
}