{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108203",
    "entityType": "User",
    "nonce": "0x583965b3dff96c9088046df55a35c50bd84e23f0e384b83899353cd5e1cf3fd6",
    "signature": "0x2e3aebed5056ed8d12bc4d3c9ea05b5888d7cdb62ed07427f099f6762fcce6b57c4b162f626e90b0d3c9b38fdcf9bb30f03656fc06943c82cfb7dddccab7dd8e1b",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}