{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x7b0dd9b68af18c43a0eeb8729d6c540fd95fcc920a60c9812957d7fe92110f2c",
    "signature": "0x263773ad4ef6d1a6920e3fad81dfcf62ed465fe193ad091fc70c935323d08a8e66eeeb04199b32d987c454feade3132cfcf1566c26fde350750dc449064f5cdb1b",
    "signer": "0x85b05A5e7cF0feBb14BB5feC1E645dB5151F8e8b",
    "userId": "104634770"
  }
}