{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "371584",
    "entityType": "User",
    "nonce": "0x72de8e8a840a263a28b76b000436784d75e55abab56f438f5cb909f5b21a8b28",
    "signature": "0x711bb1ffb30958e0bba51cde85896f468016f7fc4fcf4cabffcecd8370099f0c17daf1146544b0729e2b3a8fb55dbb1cabea8e9bcbae5a49187de555e2e811141b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}