{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "90915",
    "entityType": "User",
    "nonce": "0x3955399204a35355bbbef632f4f21b841ab79f368fabdd6194852a1896c8ec52",
    "signature": "0x67482a888c113d194107d42c46e9ccdf5759f7267c8ffe4787bbc5d6e3de86ec1bf035000881c2788d906f4bfdce9e73d7b6a53119659a1de64363afafa67b6d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}