{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x11f87e2ee6bbae8e9131316466daf4808b4454fc8b2c243f84173267db5f9cd0",
    "signature": "0x55b90f85a70a9673541b5533c42ad05927ca38f7db0b3f4675ab241d5a25b62e36ccadae1a8d65c688f447b559ade21c9995fa58c1bcde95a26dd7276da6c38c1c",
    "signer": "0xAcF1330412ae929ED0eab55ee4fD668A669880E1",
    "userId": "615925709"
  }
}