{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7fd44d8d79e1c9f426b16b6b97ec20d8e174d1876bcb1a2c189b8c28a0af519c",
    "signature": "0xd4ab8a2b7ddfacf7e25dcb0129334df68df40f88de13d59ed11fe91c63c5e14a3712bf268b29e159d3c7cd14ba1f46a8c0b28e9eb290e7a716bd03ab6f8432c11c",
    "signer": "0x6164d22C5753c6E9f1ec157dDef5A3C606E2f10D",
    "userId": "534038283"
  }
}