{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x310b9fddfa6912ce62efcb3fed5196eb547a3dcda5ecb79a54b9aadb01546e5a",
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    "signer": "0xB7817dac39c5e521717546e27C95A1398B5A8e20",
    "userId": "757790493"
  }
}