{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd46459e5e30fb333e46d44b9c1ec82ce48bd6b472239b4978797e63499069cf5",
    "signature": "0xfb1a1bc53bffc8687b175af468d480a46f775e790d5c85f76c5e9e1ac306d48f0906da1c32d6360dbd1d0686fda264e30b1172a0ae2061db9068799b206f9ecd1b",
    "signer": "0xa9746279Bb0c0bF696301994E6c7CF452abB0d62",
    "userId": "155119612"
  }
}