{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1489",
    "entityType": "User",
    "nonce": "0x3deab27c50efd33baa42997bbfd1ffb7fb74eb1f42a61a5db91293b36a8d50ba",
    "signature": "0xdc7a19eac356263443b5f00d94b7b987c148798496bdb291d6b040b436e977d04f08c795c3685353f83ed3e7695af14bc448cf586c00a62d9cd2bd962664e4f91c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}