{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "842214964",
    "entityType": "User",
    "nonce": "0x61806829a2c31d2f855e9d1678d52e361d7bf7c9cc8aef9d726efe3568a6b59e",
    "signature": "0x7433d82287641f82a528e4c402ab7d1d8a814e8047764e1951074c467669284e2a7ba496b7a46581c1a0166433d0b7c4c9e7664189174592a7ae744907eddf2d1b",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}