{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xff7ef05eaeca86fd994b41dbdb8191f3a56b6834361358bb0184125700b4960a",
    "signature": "0x8288b50f448e0ca9ce14d94568ee30990b5a498fa068d2d9cf3f67256a1bc5097dcca89f4b4b3339c0389dda07f117a67cfa08564d885b810a0de57663effed61b",
    "signer": "0x7485DFa6dD3242CF70f4eC6EcFebD9Be63f48c5f",
    "userId": "527928318"
  }
}