{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa53fd207959e499bdb0fdd143fdf0dfb74934b815162caba93d39bad7efc00ac",
    "signature": "0x871aaedd15827b23d93cf03dd51b5ae87c6661f40ec94447da4e5e9ac6a7aa3d0096aba089cf519f2cadd437be666924a59279d7b6e757706bc8feec4691e5741b",
    "signer": "0x01239212E248C7662165f84426023727b8FDCa0a",
    "userId": "716849471"
  }
}