{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964025330",
    "entityType": "User",
    "nonce": "0xb047a0a01fd3ceade204c47c534892556d7e2651f6bee6379f4a98fe4b592d20",
    "signature": "0x87cdceadf6a5c0e26bd88ef2d139fb77d2322f5f8dc488c2dc3af1f8315a254417af413658023cf5317d0ae4487134c983b2d8b3007280d29b47d14aa96d3cf41b",
    "signer": "0x9FA029c6E43fD9781215e024e9ae5802602Ed2Db",
    "userId": "738673571"
  }
}