{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146787",
    "entityType": "User",
    "nonce": "0xa10abc6eb6626d443849e5ff62b04149af215c69f4f373eadb5158213b7da913",
    "signature": "0x9d9b8b53f4433cc2e09fdc7c02280cac55f1c0fb7c4e177624c02c12633e3b276883be80ce74b11d22b1c8466094fea88b5436cf535484ad46d3a765902171851b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}