{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171594868",
    "entityType": "User",
    "nonce": "0x6543358891a72115b8e4f2163a455cd4de164b22847470cee95843543337140e",
    "signature": "0x7fa86c62a2f007216eb4eb5d146a5b2d2a8b93c3f45d0a41e9e8206993ae0a516f7b64bee0597179ed649d69850ad6358a6b23e3d134e67879c56bb16c258f171b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}