{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4756",
    "entityType": "User",
    "nonce": "0xfe76d938446c42a0bbae329c42755e3d59b69b18f8223880ea1f55aa327e7ac0",
    "signature": "0xb1fed464e190034a776274325b0c6105195a3e805fda52834f813a6f351e38383128842634c34aa9c033d0c1b84ccef426acb4f010bed9877dc21ea46117d2a71c",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}