{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "283478",
    "entityType": "User",
    "nonce": "0x7c26262a4895c061d046a43e6c1d2ca5b63958c49585daad8896070aee5566a3",
    "signature": "0x5ab37f52de36d0478e17ebb0c092c7355c7ba0ac73eb4402efa9c2582b1eb5500ea374713fbbf60a685526dde800aa90b05955c608f708c3e4deab9d73935bfd1b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}