{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "60",
    "entityType": "User",
    "nonce": "0x6a7e81778fd09ab919f0b30e6e9f27581af000c46b6da44a6c2bc2716b626664",
    "signature": "0x129e797f69a6c5b74290e2bfa20179ca4fa08f4a63f9cdc489b4d76a9ac577da66538b9fd8371fdbb5f3115b5dadcb05f0fe6c258964e2cc9d1df3b8f4ec70841b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}