{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x058b9b6a9f0453472242dd97b7f61d2074d29101d391323c3b00d998949a4148",
    "signature": "0xccc36508cce8b3b9a1ed4a0c61280804e57851ceca731c19aaf4b7c02f0bca212e413ac66d4d832d9b4501c65c9fc40b555db2b9d9f1eb821ba0ca216555cfb21b",
    "signer": "0xd4d3D88F235bcA55Fe64abc26C8029Cf3E60D4Da",
    "userId": "357884806"
  }
}