{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "159054652",
    "entityType": "User",
    "nonce": "0x19b345f5d191c1bbe77ab5f65ebc51d3d05b300693d9c96ae8122037065847b2",
    "signature": "0x3cd3bc4b44e4346b95d22eea5fdc5fb5e730c247b4b9051741c1e930c7b3b44c66f5679ed19cce1f2085baa29b3435e12ff88d5a9c1ed91714c4bf0a196252521b",
    "signer": "0x3E7F6F693C77F683bB144168E395D04d0aB582eD",
    "userId": "470984705"
  }
}