{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "458118601",
    "entityType": "User",
    "nonce": "0x990798cfa28a1e7445885f1588cac4f208482b5178ee8136de3904d9ce811275",
    "signature": "0x7e3dc1eee9eacd78c3250e1257d73a04613886e61f8f92997ca361485167633721796ec924493bb483ad2d40f10c6c06545c4e90682a7f314753aad2be22cde61b",
    "signer": "0x488e8Cc0aa4A4A170544982D50B2616e42ca6c67",
    "userId": "386938284"
  }
}