{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "442386608",
    "entityType": "User",
    "nonce": "0xfa7f37c1a544671b2cf3e5405f4619e49436c2a7b815ea29b99cb70ba8fc8cb2",
    "signature": "0x6cab446222f676659802eb28a2a342108d7ece794513e398ee0635adb3f4a6794e355a216363e518b36c3557267c7aa18d941ec38ffe508e90827d3144b5b4721b",
    "signer": "0x233382155bAa86B22038a3D51E7b568d3397AC1f",
    "userId": "564294932"
  }
}