{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "252398720",
    "entityType": "User",
    "nonce": "0x82ed9c062d3e79e2955f273bf568049156a655854c63a2cda387bdfec8b4ec14",
    "signature": "0xc003dbaea885be8780abf49f7410a2049d6800b89063d727f67a6bba424ad5fc5d64ab8ebf394c4413af4a932a7b3925f563f1b27fd478359d38f5edfda7ccd11b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}