{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "360550430",
    "entityType": "User",
    "nonce": "0xdcc00c02df03e4caded590e28560e24d3987735309808fe9f78a133aff09e7af",
    "signature": "0x02fc54e5ddbd99062861a208a5940474b7f34cf6c74286652e92b7223a62528e5d6d2b696b307be530449d441a39cca14c4cd6e653dc7ab1dc44689c8f204e7e1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}