{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "995816736",
    "entityType": "User",
    "nonce": "0x76e29101835f6c7d3d139f953ba75cb6d6d04e04ad215c4db88b0db017706c86",
    "signature": "0x57f3eff425e14d8292b1de997e28f81e930b0e79b930f2d691ebd4dad6ac008f28baaa26e378d2a41a489935deed80d8fbf831a45a6feb8b585112d9205b77bb1b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}