{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x94be2696701ea18acca803132a80b091dde83d26731bb907b9a9b0801eb87f5a",
    "signature": "0x0e368498cda5ac5d15ed64ab48f5e4c296f0aaf1419b705f64b40aec01cd718c07ca92c1248e96025e612dd49778e06b70ffa37e464029fd354bf07190ce0b681c",
    "signer": "0xa603e9487Ed7C3C62E8acb85f8f32acFf5d6349b",
    "userId": "278135553"
  }
}