{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "334948",
    "entityType": "User",
    "nonce": "0x7218c03778018742b5c4796fea538dca484eb746450ccb1e26e5b67b2e8409ea",
    "signature": "0xc7594f22592f72ceaea9de82de8fcde6c86cca46d10d5abb33ec552d90f632517be46f357978239fb44532fde5e49768dfcdc08061b6383223407b25f1fb51d21c",
    "signer": "0xa0e7bc51dB8029B4a47DCb7bC620654B2dA7982E",
    "userId": "760921899"
  }
}