{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54490",
    "entityType": "User",
    "nonce": "0x8e6c7b97a5ce493e6d5f268bf5d4ea60f0433577c00a4b70597ef4263c86ce23",
    "signature": "0x141a3d54d48632e6380ee864d32c37a8c917afea3bad3a2a4fde846f904aa39a0c1d9823b2036d84c90d12ffd0c2023d9bba5e298367c74f653baf8bcd564e031b",
    "signer": "0xC3B8Db4fD6b5608e625Fc02e4e8B7a274B7dB687",
    "userId": "110486155"
  }
}