{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xe4fdb9bb1ef0f6ce1b21c1a6fa6b66f096fd04c37c9eacec8ba1b12b3915fae1",
    "signature": "0xf9e7268bc849ac074c6a1ca59183bb07e5d58d50348d052d9a66fb40c6b448982f61a3b01be8f55d01b920cf14b84a305e312a11cdd9d663d0d70e934e2e26b71b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}