{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73269869",
    "entityType": "User",
    "nonce": "0xf1db2292323f49773489cce15cf33db97d304ab640a070b9f8eb803adfb1850e",
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    "signer": "0xB7FbBB4282208079CCDcA5f9209D3dbD873AFeAb",
    "userId": "400413076"
  }
}