{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xae842042f3b33ff59995d6801056c69cc95a3d8779ec0bc3dd1f821191b344db",
    "signature": "0xc8379f5747656b6aaa99ec054547f14b81c70ad4a62f70a6b36961619a7dfdb348efddd6828507df7bf0aa93e6a8a825b2a70c4cb1a9ed208c1bdbbf4c83e7061c",
    "signer": "0x2f7f0e01e38DB161696E302499821B025Ef9b9A2",
    "userId": "858031702"
  }
}