{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "773501378",
    "entityType": "User",
    "nonce": "0xe46e5fdbbcb1f6703945f715aa88475d0d04d9d300083f47d4d9ce9c51b57cfd",
    "signature": "0x5bc35509cc1620d5e278b86c6c380a15aef7ad36951b5ee1f1fcd1a752c406824958450d37bcd256e752578655c28b181a7b2f08a747b10a030695a3549573331b",
    "signer": "0x42cB1e20D724BD902Af64cd85c700BE6118500bD",
    "userId": "47154652"
  }
}