{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57493",
    "entityType": "User",
    "nonce": "0xa3e72b872818576466f5eb927c6c363c1d22103e7f69a1edd7a7ba267332f24d",
    "signature": "0xf311783e6dd5a9c558360d812ffa3ba75b4cc1c3c1581afb9bbc1fc02402d58b2ab255711fb39cf8db49b9644f16363fc2d5f3d0243d523d2e438379ccd32d8e1c",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}