{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x67805707bf468fd187bc15e7c36ff55a21f9a2953c58fee67bd440bba63db351",
    "signature": "0xe30656e2142e371d81f40f74599214cc2113f9bc3beaca116e022d589a3c704968c49b2e80181417df7ea51e35a89c1845671746d3f8059e4c9b5688f2165c241b",
    "signer": "0x705cD505dC4C033c9D74f1F23035707Bd6b9B1F3",
    "userId": "445832820"
  }
}