{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "776994971",
    "entityType": "User",
    "nonce": "0xebc779ce0c0f84ced2a818c1b9e44565619c302e483a7451e701d6fcc0e6df83",
    "signature": "0x0ef6eda514a9ad201abae18233309bfc1338bdbda78cbfde0a5714fa6d20845d41bd92dac21fe3c5645878bc09944481395f73ed5225b2a4b2a749baf4616db01b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}