{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdd626fc9cd592e6aef44ca6c56a8947afcd026027a586478b32b1024393ebf94",
    "signature": "0x1dc7324910776df47d6464a888157ed6145a72d76761979bb635b80c01a7820844c838e348554ac607f90bfbc042cc755a93cd1182ab3a4f9fda78df8dea99151b",
    "signer": "0xdd733EF8F0B56Aef1Fa5aC2486cc510dc6A1E6b1",
    "userId": "533845837"
  }
}