{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "392950",
    "entityType": "User",
    "nonce": "0xb673547287fbd29f7c5ab9b35ba75ba7d524ca8e637797d72e7d2247bad07a24",
    "signature": "0xb8bf29b7f4d590f73d4f98dbca74515346cd5088b59c399f342d45e93d92fab841bbe21aac16d6a8b60d6aa0d650011fc5f476a0a2ae80adde8522b2dcd0998c1b",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}