{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2043401",
    "entityType": "User",
    "nonce": "0x9094a8004543cf5f7ff4cebad05cf8e32f7a964c081c4ba78871a86b6a48bfef",
    "signature": "0xa87c889ef6f6f86b00b5cb7957a41fdc90a156f347ecc6f948b1bf8d3533583a5a17559d2b0adbe265ac9ae2bbe8df7b27c48abe8cc716ed4eebd7ff7e7b5fd31b",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}