{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15642",
    "entityType": "User",
    "nonce": "0xcb91c40077c85bb903f529bb971cc1dea45f475cf3fd32453548d3f6cf7b6ca6",
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    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}