{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951995708",
    "entityType": "User",
    "nonce": "0xb7f31183b137a9b0f49b15588dd113de38f9d628d67d377033ca8774f454e35f",
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    "signer": "0xC657bd3E50e9082279d5D1a5f1B85d0c985b3523",
    "userId": "592353919"
  }
}