{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x60f44ffdff117dcae3f3f79d829c61f428aa4b4f94de0336e2a5dbb1a6b61f36",
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    "signer": "0xD6cb88a7DD0a1a267E97ca76ADc8C6734f00aDAB",
    "userId": "434726778"
  }
}