{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0f5c36242c89bc482fafabbf3154f2d6dccbbe38471295575db02e7e2fe0f349",
    "signature": "0xb6e69eb1f4498e05dc775e5bc4d966fda66bcb640a34e60488a25af3bed3aa993c28d51d72aff33bc1668abb30310f5431c55e60bf0c065efbc42cb2129f7f941b",
    "signer": "0x4BDBB41a0d231Fb161686b9Fa3d3BabFC5c5201a",
    "userId": "791039127"
  }
}