{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "908879704",
    "entityType": "User",
    "nonce": "0x1a064822fbcce39014df49134612e4a6a8cd02ebd9bff84f424b18bad95c83c3",
    "signature": "0x0bf1358f2a49d33415c9ed1bda5089a6fe0c521021806fafc1f653b5e8b164710af570446e607eb8f159a0b887ec9ca16a6f50f55849c9e26ef632446ff5ac781b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}