{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51154",
    "entityType": "User",
    "nonce": "0x3d00eadd8d5b995b34df8895ba549bcd093f66ce7b89b0a026cc38115622b995",
    "signature": "0x46a3c5f4bd20536dc921233f59469270eb2a196db8cc1e6fb9b1816e565f218739acf6f077d327930040092a46de792532f2a1ce62a59e13f2f5e7507aac6ba91b",
    "signer": "0x5774AC4719fdf866d205a493318550B834f1804A",
    "userId": "637066952"
  }
}