{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "424589877",
    "entityType": "User",
    "nonce": "0xd5fe7abffcf4942f4b02334b51f9197950fc8473f1012ac3536ab80ec6a04f2a",
    "signature": "0xa933df513df42843c68cf5e57bcf7da0865af367158595d5390f588fc4444e0b24b57affe2d7f94d02860e610cb99ad9658bc35ccc63cc1457bc71047027419e1b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}