{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0x7a89b0b4e549055dd3028ff1f7a27df0621abec58ac848f3dd73e3f16a22dd7b",
    "signature": "0x4d66782646005ba3dcd5c8b441242ff10d8ab6d22aecf4fbddf4a2838c7661aa089fcda1ba60e605227a50812cdeafdecb9ca8e8fad977b0bada709b760e1e621c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}