{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175425",
    "entityType": "User",
    "nonce": "0x52612961c30486c2ce74379fc3c33733ffe76f0cc27f3bb90478af3b2891d848",
    "signature": "0xe0a45e72628c178f89ff069a3109f111eda533804bedc78595f0ea860fe1dd8e6b8713ec528aa268ba34f4a484d9aeb337ac55f7e1ec17d0f674089a41cbb9291b",
    "signer": "0x5c8AfDEAc05FbB157876C04BF36E221C2318278E",
    "userId": "593502567"
  }
}