{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137817441",
    "entityType": "User",
    "nonce": "0x0590f385500f97ed36bd8f486b2c99d9efd6d92d3e32188ffb4b5752d92f2ae6",
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    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}