{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56534466",
    "entityType": "User",
    "nonce": "0x9c788005efc61c794b53c2f8b6e1aac769a4f9d87438697f996a82c31d1aa266",
    "signature": "0x76e2c621a13294338ba2e1cdcd58f1c1a9975343e2687250dab66f56066a8e3f184b2635120ec9be4055f2017e5d0035dbddb897305977372590e9dca4a0fe6d1b",
    "signer": "0x7f60C5D86fDbB7F2196E4ef2401BfAaaED1f96c0",
    "userId": "689886393"
  }
}