{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10449019",
    "entityType": "User",
    "nonce": "0x08ec52215febbd792a574c450d13a4fb6de18c1963e917e6eda0fd883b975c9f",
    "signature": "0x44e024d7d2827a4f48f272a2960c92a480132686dd1c83c0c71416516f6237ae3a27bca4b7a459d3a687aca0c1237ac7497f64926694f0bcb30ce0d64f6a4c811b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}