{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "52954",
    "entityType": "User",
    "nonce": "0xe2130caaaf91ac91a043ef3eb0d1fdd30ab6043f4abd41b674e83c31bcede4a0",
    "signature": "0x3a7d523b76bd2def840b9cd930d963e8ec3fe31bd205df7533171d06679487a6671f4115471a4a0b2e0927a2ac521cf4d59f82ec8e029040a705561b3b581e7b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}