{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf5e2d4061305415869504917b2b13b4cac5fcc356b0e7df97a6f166ac6f6ce3f",
    "signature": "0x40502f1943f75f565fabe60e58d1724bbaef9caf8f4bf948ddfd8e9745ef265d1916d5b8e87551807971aa52b470783b40ed29567f2d5eeb5de39a5c9808ccd51c",
    "signer": "0x0e28ef2789040667a2ed8d51feDa5e8FeeD3f278",
    "userId": "958178685"
  }
}