{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "451684863",
    "entityType": "User",
    "nonce": "0xa586afd03df81da5d0c14c3d038d0b4c2bcce13178bd1f2c073a09c32adfe307",
    "signature": "0x6cf383e66f4302384183545f7f3c16738bd4a97ed2e273b6cd644411c571e26d315bacd39280b177e9beaa9dfb47af5a87d7a39f43a26f1232d951d305c1ef5c1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}