{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7173",
    "entityType": "User",
    "nonce": "0x2b8eff5d6b2ab1a60813cc30d905d5408b39803bffc0a67ab87c454f6a4e6b52",
    "signature": "0xb788effbf54f93dec632f48e5c3515db75e5311000252d59d35c74345161d5422e686f5eb363d2cfdd40bfc3befae60394921c9762f0e340aa4bbe1c5bcdc0b51c",
    "signer": "0xF7F56DF4D8a2Ae2BF9Ca645DC684f84c37BbDaFe",
    "userId": "116272245"
  }
}