{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf8ae27ed4472f5e00dcb30f8233e89ded0985023c2c130694ddd9e82ca6dc17c",
    "signature": "0x6fe87587ac53bf2d4f0c0510c19a7f7f5205191e0b4db4de13e8a9caa763ca9e38986778351cc4bc12aadbe27577d57fad2d9f095c92532dc9fbd9cb828615631c",
    "signer": "0xdd9866f5231155D8450f557CF6216590fAeE2900",
    "userId": "697765896"
  }
}