{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15191",
    "entityType": "User",
    "nonce": "0xcf258ad7f03c54ef35553d4295f7a33c90d7db72481a6fe2a4f4e5e0748d32d2",
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    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}