{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "29907",
    "entityType": "User",
    "nonce": "0x8f9df364d3891ea58e8da472a5f1e45e35ae48d6746c6ab3ce2f387cb2aaf01b",
    "signature": "0x5f12f9dd1bf11f4b77568b4e07412f8e6426c234f1506842d41aa2236923f45618966445b2aa2649b5253261d21ca1867c92d9bb2adc6d56914a24f07ae9b3ea1b",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}