{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0x38a94e963de426b0dbd9302994164bff7c2b3bb9cc01e20075e23ca2a37add48",
    "signature": "0x5ae224ef765162a89be729b487c6a342586f33bcdcce31cb89a1ac108365b6a32f9529be4954e8a74f2eee51c53c6316e26a9f44d84a14a215720824ce162de21c",
    "signer": "0xc95EFE880463dc9E6fC74760701bBb0A05704C9c",
    "userId": "95927626"
  }
}