{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1509311",
    "entityType": "User",
    "nonce": "0x7ca1cd302dd556313b8eb2f606f752d673aec3dc1fb30309c23ebe49bb667c8a",
    "signature": "0x3ce38fc3e1050df245b1e578dc5491abbe01c60164439896026518c48631b64970fb0770c16bae584957b63e5052d8324e6c356c79145f3f0fafbac254b7cd931c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}