{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x6a6421c914ecaf86e28091323b24db0eb3c14071375b7a18a205e8d215c2298f",
    "signature": "0x68002cfa94fb02d5156c448147e3cf675c1273f5555a131ee0d0737add1bad1214c957c16fb8928870e5b4fe6503aae415a3fccc699c2feac882ce8769bc157c1b",
    "signer": "0x6ABeC6bBE57CCcb5414C4f1DF7397331b9828727",
    "userId": "750637079"
  }
}