{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "782931441",
    "entityType": "User",
    "nonce": "0x6a35fb07970728587ea8f1ca04074611db47046e2b9937054e60c1e912b5c9c9",
    "signature": "0x75bd21cbea707ecdcf70dd568a369f5cf61f3fd465d269166a8ee7660be34c1159a4c37d3051a7dc1da7b968d42dab8e5b92f4fd91534deb80eaec8eac97de631c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}