{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0xc75d4091033dda1cfa30d577977c32548b34b99c1710831f86bc3021c9244bf8",
    "signature": "0x114b0c957d5ae3e3d6c62c612abdf857f0eaefdb0079b77aad2b8f47b83e1f92088d30b0b8dfae94810c3e7ce5068b9fa5e62edd6d76699bad8a60249c9803351b",
    "signer": "0x02081b2c312F98cf92131Eaa7E5FbEDD25a6CD7E",
    "userId": "441499686"
  }
}