{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "164029",
    "entityType": "User",
    "nonce": "0xc0f7c3b5123904e6252e04529ada8c3936eb3d17d58bbc71ea85410884276ea4",
    "signature": "0xb5d1bc72a79fb1e8a3b1672b943e176dfffca6ee6584adfcf2023c1a62e5d9d34b7c87d304360067cc5b0b6f9132dc25f486eb7b0a8ce290f4a52fddd5231ee31b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}