{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584724126",
    "entityType": "User",
    "nonce": "0x4281a51a021dfca77e36664fa9acad0256bb6e88a40de474b4d757323d62738f",
    "signature": "0x850bc81e6db3ceb2043f5038b7c61246e48ae3c1a2a8bfa7940c49d25a027deb65eaa3c7711e384479ce1aeb47f8e9bb2e978e41d47780233623f60a26fd3c8f1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}