{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57905",
    "entityType": "User",
    "nonce": "0x2afc0ce0eeefca72f2369d478fc5868c61f9d4b67e58bb00e2411b89aa29733a",
    "signature": "0x50b8cf890942367648ea412ad8ef12e6e749d533a0f422627a1e981b5dbc4bc950812edb1a530819e9426cec7d8c3fbe9cbe273029a2dda267ef5a4bbb3e2dba1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}