{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1513784",
    "entityType": "User",
    "nonce": "0xa943fae078bec481f0c3d2429ff5924d6b0930bb7376e7593e590f1cd31987bf",
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    "signer": "0xB37E6e788b6A39dCDcB53bf8D70077f76F5F5C26",
    "userId": "895209133"
  }
}