{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15980",
    "entityType": "User",
    "nonce": "0xf9fa32e46061b3b611d04abff5a9691b9490d668cf6cbea57f9b0d99ea9e97d4",
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    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}