{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x519ef943c03630d1d16a59530ef790c4398901b81d787d9002df55a0dc60b78f",
    "signature": "0x01c7930b197f10f046d7a16778e73384880943db64984b0e50b1eb166c13be341ea1409f6b7a7c91e10b2f064fe6c40e40b8400041e5ef6bf02390cf5e00f8fe1b",
    "signer": "0xf76Be3e57D30ebb176cA7D31f49157c7f56E6b0D",
    "userId": "204302128"
  }
}