{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343",
    "entityType": "User",
    "nonce": "0x0df024425a9b83c6002227541834e31f6f4ebacdb3d3a876f06c0eed9e5c3575",
    "signature": "0xb1fa2e3c71d58d62e97f61ca7a681089840f81357b24314c9a40c185627cbe0625836abfef9672d2e3c5dc28db1f3c1a2b4a05d06c734bdf8a474fe0fc49b3cc1b",
    "signer": "0x7094144C776594790B5E922D084562dB60549BD8",
    "userId": "602217700"
  }
}