{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "389234186",
    "entityType": "User",
    "nonce": "0x352569da66ac568a79e7dce97d5180d740036c01183ee1307eb06506e0b040cf",
    "signature": "0xa4903bf2f8eeeee4bc6382b98a2abf830f65775c211cbf83aa4477450252b352717d2cddbdb0e613be36a38c0540eda3584c384eb2d93e9f62e0cd8b023aaa461c",
    "signer": "0x6965Aa9ec89F0ab44c5241159D2188d7b83c1D25",
    "userId": "278763919"
  }
}