{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5150a33ef333a0e1f3d07dfd080a87cb00ae7c6f857f79645c5cbb72641efb2f",
    "signature": "0xcede4a6b1135eb67b947a087afbb8a9014eac09c385ba04c3ee76644b4ca36f2713e30f6bd964a791ca5f2b11ef45fd7e918ef576ebe1bef254ecaa82f0b87ad1b",
    "signer": "0xe8e0f3477F3746a14A249ba6C3B12374aB5ae098",
    "userId": "364950765"
  }
}