{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "669828067",
    "entityType": "User",
    "nonce": "0x049a9122b4ccbb115fc0d13184ce62ac9222fb2a6d2390c31397bf36d3ef5664",
    "signature": "0xf2ead883cfd1c427ff2edd5c757d9849aad7ebf34b722d45b79bf60fb50033251d525744aa7ee024129bb93b9b470c9c2968ab96b4374cd73f8ed1d6ee996f8c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}