{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "256479919",
    "entityType": "User",
    "nonce": "0x371bb54e92ea6255bb7771fa1720a60cd4971821527f739aa57ea4284c754039",
    "signature": "0x9cb4f64095344df7d51d9968c1679701fd85d13cd56a4505d39e57f73b7826c907ae2d63d6a78e5e5e8112642915feeb3c0a1b533d40df64ef273597b7bf5ada1c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}