{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x978e5ac2aa9a81606d069e0fe711aaa64e22480103e2e6730d8af5fd0db35247",
    "signature": "0x220ce3f4fdac79ac4f860b9c94cdb994ee7802495d68c58bf24d73191c58fcae7aedf61a423de0013911c4ee05068c704c2ba9255f78615819d0ad743821f48b1c",
    "signer": "0xAB6eE70d56A93cDF21a1ac81F2649F219A82e3c9",
    "userId": "985546444"
  }
}