{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf2e03b2df868e3b93626a66f63d3cc0165861e1248e394a56a269e4eaba902c4",
    "signature": "0xc8cf637afef51f9acc8e533a41170002b615ab4a7d5382e185903398a13a3da925430d142710ae699afc2c4120874fbb06c612ae463d5ea0ce2c23bc55241ecd1b",
    "signer": "0xe4094b5dB0BEBa5eDB0d4D81c5D86377bA5E8f72",
    "userId": "563905866"
  }
}