{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "458682431",
    "entityType": "User",
    "nonce": "0x84084e1b670b23c7b9c36edf89c5a5d00b1734880505e8fc7bb5a0fdea2392c2",
    "signature": "0xd2199d4fdd1df2ede76919b0ba126ea1a67a7d79959475602b056146f0294b6d08d20c51bea3f3531def1f1c93ac8ae0b7feca974c433ff30d0c6467952355651c",
    "signer": "0xa26d3Cc8D0F05E79596837bc13c4Cebc9Ac08933",
    "userId": "421871922"
  }
}