{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "568518925",
    "entityType": "User",
    "nonce": "0x1412c965422bd9be22003df3f1ae188881c8eb60f0b5d13e832ae6c69a3efcb9",
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    "signer": "0xB0cCb7cc48b50141620Bc275286fcFb267B393a9",
    "userId": "878527718"
  }
}