{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "225974748",
    "entityType": "User",
    "nonce": "0x49ee9f312d2f7821123c66950baf7eb82cd83db60428e9ba6055e2b8255ced82",
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    "signer": "0xC01dcC9Cbea2BE4DF5fD18bc59f99cB6A44b84cE",
    "userId": "208704492"
  }
}