{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49515",
    "entityType": "User",
    "nonce": "0xa1d766e638e07afa3bd52356370ea967d25a861a093e33bda7845ad0b23820e4",
    "signature": "0x12abe1ae4ec2067811a1101e40b00181ae309a675afe4c3b333731ebc3c86cd22212152a69a91b864712fa9ecec2a5ff47cb92dbe93a27c9758ead213eef756b1b",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}