{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54432",
    "entityType": "User",
    "nonce": "0xfea5070a62247a6011897a71149c1782a10394db5cf98ebc2ea0aa60b8121858",
    "signature": "0x26889901f18583643adf9e0f5e0761d8431a318ebd6653f715afdb88fef749374985140cd27a2291f4798bc0f82ceb01f71e79706ce0af595560c530b2c97bc41c",
    "signer": "0xf95969e92BFF8C7cf42923fABC371C2D2B9D2f56",
    "userId": "614520593"
  }
}