{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "273944",
    "entityType": "User",
    "nonce": "0x00477e3545f8328d1fda91dccbd1665b921d51b84317242561659fde1ea269f9",
    "signature": "0x5906c026055cf67fb512d166ee79973c58f66f38573e94427a0a68135d24a24a0f86ed76a05b37991306e5eb4d0b80b34bed1d85d3227c4218edc62db96e97d71c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}