{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa4ca283c0e4af56f2c142bab3ff563e1e15dbca577962fc87e90cec38d740949",
    "signature": "0x8ad5ca3fc1321f7546a2d67ea755833b38fb5ec6882dde948be3fc36d0993a724753f2298a15a111a683b423e0826cada3787359971efa32e88c84882d4e6c591c",
    "signer": "0xbAD012b734cfB65A9FE3d71685746901db0Ea707",
    "userId": "385029655"
  }
}