{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1439430",
    "entityType": "User",
    "nonce": "0x307c231c6c2810a86bae84f8e7917d28d9ace4e9b19769d4596f91cc83ae4c09",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}