{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "303507",
    "entityType": "User",
    "nonce": "0xfc1e80d3eeb3a3fc468fc2040aecd8df0aeeefc46f4d649e3af1e0deec123b80",
    "signature": "0x33a6d1709abb20d68a121cf8e34eca52b2bea56a73458ce56329a638a1d67ea92b2687684b064ec0a7878394ae9678d085d4c553b8fa40ec771e519f187777321b",
    "signer": "0x59F8C1C813035096edfa4457522F73A3dd19FBed",
    "userId": "95982976"
  }
}