{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "280208",
    "entityType": "User",
    "nonce": "0x88fd3b4815ac78cd5fcf2d099d0c57cee3fd4de8fec849b6f451e407fe8e1ca1",
    "signature": "0xdcb8bc605cac90ee3f62c10a4f79a1c9495cf399618692caca476d68031287783340ad920b4ab253346e6b0f8e38c17510aabc4f5b5765297cbfbf7430c061251b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}