{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "199417755",
    "entityType": "User",
    "nonce": "0x38d67e7103100b3ad61f9e606d6d00da1b43ca86f5d05c260de8fa6b2f2653d2",
    "signature": "0x014b5c4e249d6466a7027cbbded87e10e9884cd8a77ce3a596789d90c5c13a7d30dc212f566299ed283a78df3f8dd52adc30101759a398cff9eabdf6cf971b2c1c",
    "signer": "0x5e6d01F8B70091388F9Fc78aCe897341e3696c0f",
    "userId": "335869800"
  }
}