{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "225324815",
    "entityType": "User",
    "nonce": "0x77a6ee761bc8bd9d99771151667c8ecc34565020366b648ad41f47725f196743",
    "signature": "0x07c395611426b59a509bb5ff1a97d62054468e0c44e7d5db038a138bb2aeb5f34670e91351652c1e3105cc77185936c56c7a89b9ff890a402246394a2f64c79c1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}