{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "666092734",
    "entityType": "User",
    "nonce": "0x7a2661df5701283aa9ec72af68a59a6182a49b830ab2bab2015782db2325b54b",
    "signature": "0xac124b309a1cfb5f2b5e8f3c3f5a00c6fd0d423d12856d0970d3e2b81be375926d2db2a910d90a81484b07d23791a1e9fc108f7911feaf67e3d200a9e0f319b91c",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}