{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9686429bae14b721caeb4525629da9b10f5459a9c42724d4caf24c01a4d4997c",
    "signature": "0x88c786a380e0b805bc8eeaa734bf5c6a1832f6e7741d914b1e6d7a950fd92d0622561507a5e8438ed5776365eecd7bb218d0a0cc245ceb8dacd639eca8aee4721b",
    "signer": "0x80BaBdd7604de656E45b52EFA056548D7C078B36",
    "userId": "790313179"
  }
}