{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "252007",
    "entityType": "User",
    "nonce": "0xf0b72eb5e1c2aae112e74721909e1ccda73a0e7ab160cc002469e2ac2cad6d63",
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    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}