{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42614",
    "entityType": "User",
    "nonce": "0x9591bd09b7308f38fa23c2b5aae4b825281edf2e6ac3ed4f1901bef1dc95fb53",
    "signature": "0xce9cbfde2834927f6ae04d96b2fb158b8c3103718586946d123cd5cc91ef3c2f4b8aa4c2cb1214bb0215235415963013cc9f21ed76f3bdf83269f025f8bd47a41c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}