{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "831499615",
    "entityType": "User",
    "nonce": "0x544ff6f7379648a4f129d71d7424cbca2ba05949639156268bc795b5a69ed97f",
    "signature": "0xab6ca5a11b888b3630508b1303ca31cd19fa47f04c41713a359079552adf3e755b5baa778d665824c179256be434483e17aa8875a3f236083110ec7d0c4b99971c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}