{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "385233",
    "entityType": "User",
    "nonce": "0x3cec90f928e6bc8c68b35b522716d4e143742ac03ddc55d26424876e66aa87eb",
    "signature": "0x2654d015f910c06656197303971357fe98c73b8604781ba23742ca80b389598631d435dfadfd7305cb762c69fc7876f4de3d6f66904334ff91088c78a37a4c8c1b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}