{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "735164915",
    "entityType": "User",
    "nonce": "0x919e913837f39c00d707c0ae94091ca8c01807175973d8fa6b02a9ff8f2543bf",
    "signature": "0x4c9ce985e088f1fdd69cd0352168458c94f4eebedf1a6f315aa6d8a79bb9a6b3341a6b26b0ab2bbb1d30e40e9f4741dbbe94798cb0d047c563bca187acb2779f1c",
    "signer": "0xC7B16Eee24C03712c67aa884907593f4df23db87",
    "userId": "56534466"
  }
}