{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xecc048b09a65d743e415f879f4bd3bc3a450a6b3d1d3ee606b96dfc28b47979d",
    "signature": "0x7361fbfe402940696510af9e36e4aeaeea5918ccf55b9a0e4ae132054a5de2fb2d9aa2ba879b165e5ab8c4265f046770c08c6506b73e708a3b465e2b9dc7b1bd1b",
    "signer": "0x80BaBdd7604de656E45b52EFA056548D7C078B36",
    "userId": "790313179"
  }
}