{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "581802105",
    "entityType": "User",
    "nonce": "0x59ceaeaee0cca9f9c62e4ece44cf8fd8ca804180818a663f3445cd1a8b7fa7ca",
    "signature": "0x1ec2d9a739ac6b901885870ebad633f3a7a92d453d2c6dc0310b4c959270ab4a249bb0bdfc42c4c0dee9e60fa83f9b81ebfd73d5cac633429fb542b72cf306e11c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}