{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "711658625",
    "entityType": "User",
    "nonce": "0x71b3c2080f498a98e5682d6521b5dd4cc0fdfb9b91b84a079df1ccc7fd99e66d",
    "signature": "0x721c7fded37c3f6e8f78851efde89e5818e4e3866bdd8b34fdb4cbd3540a472455000cda7101c1bf400b55dc6309a7222856f4a0074cfaf9668e1c5878f545501c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}