{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329863",
    "entityType": "User",
    "nonce": "0x9cc20ed05ebe45217ce49424915883cb1fc1f557071fc9ee02920696bd7f7276",
    "signature": "0xd1e24a8976128884c504953d80aad07985d6ef89ab396a69c3cf4ec3c22229867d4138bd00c79538b145155e96d45326683a9e32989a66addb9fa21d09c6afd91b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}