{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234183",
    "entityType": "User",
    "nonce": "0x62134a201293ed93b85313eb972b216b0989af9bb20b0c955e353633aae9a6de",
    "signature": "0xcc8622da81ec2e657d3153208af7978eceb9ccccb7a4b2163e00f4b4b5903f242eeda8ca21be20df422c9f93c87dc12f0e4835c564976d84ca2566c4c9aee1621c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}