{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x9cbd71c6eeec0be15eb62169383aac171d572a9d3b3cbc64b52491e768c2d1df",
    "signature": "0xc2772dd9c91804cf4c5e7cf01666abe855ace6012a6776c67e8202a2cd418d1f3d8c0d2f431c9587c17f263a704e8245e93aeb20c29f6bb34eac29cf47a2f70a1b",
    "signer": "0x7a78569646ADa00a4d555F20fA48e9cDb9ef14F5",
    "userId": "333304008"
  }
}