{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923551697",
    "entityType": "User",
    "nonce": "0xf7e2cfba403126e9a3de1694d7c787c71c1ddece839cdfa03e4262d3bb4604df",
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    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
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  }
}