{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157194",
    "entityType": "User",
    "nonce": "0x24556923f9d3081395ebcf21c49478f4861b21eb08d066e84e59bbf509c3f10c",
    "signature": "0x0df9ae381c7321b22dc732da3044317026e1c471455582bb3bdfc644548efbcd7212efd97b1c2312b5a4a30db6b9d558ff1e2c7eb84ae43c2523519b0bd0a3ef1c",
    "signer": "0x223D5f51f92558c8Ff07CEe4Fd5478570Ea071cc",
    "userId": "486317678"
  }
}