{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50424",
    "entityType": "User",
    "nonce": "0xd4d2db6380dfc00b02094c2fca4c392577f1eeaa2d66e98ec64c68825215781c",
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    "signer": "0xB12E323b11D9f9ff782100fEA9DC62fA6566Ea51",
    "userId": "622482628"
  }
}