{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "910778788",
    "entityType": "User",
    "nonce": "0x9ee22ea9a76884b79c31850e36a21ef42d1c41e5b87cd9ac72f3acbb09c9a275",
    "signature": "0xbf678c4875f58e5a1ec2a5a5878c8317980e9673ce8579b2c7943cf6b0e708f66fc25ca1ce934ece5cc93b5c53db48dbde3260aead468634e305d4bb61350f0c1b",
    "signer": "0xE0EaB915C3153F4a2DF5C6e7b8D58dAc829Fbf2f",
    "userId": "774741623"
  }
}