{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x45780506ef6eb286cfa54e8f30c0aa5965fe68ebd032754ceff31f4f1dcce29c",
    "signature": "0xa5093fbb1e1d6d27c43604d77a1996967e427a743f73918986dfd704c65d27f425526436e09dd83ff350dc6dad37227a70d12b5e5e724b1eeeda2f8de48e5ac11c",
    "signer": "0x2A14138332A9222Ba1386d3cDFac9B9798f28091",
    "userId": "603793696"
  }
}