{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "150500",
    "entityType": "User",
    "nonce": "0xd62db32d7594f47120b3d3ea9afe4a561e055d700ffe49f869faf89875b3bbe7",
    "signature": "0xe5db803209e81da69949cb6250d9b023130ee7599dfe909fa9750228beea3fc522016aec0fe6b25a900ea18721457b35016e855674a37af43b717989d38600bc1b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}