{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "404",
    "entityType": "User",
    "nonce": "0x43cfc2108ece37bf756e4942cec092662495c1fe0fafabdefec712a62fdf2f05",
    "signature": "0x0c7846bbf42c16213695b99941ddc1095e1564d1433c9c14904b0db19d2f74486579bca72963754fc2520261dae0490f8ba6dce3eb0f2918db65b256f7d3934c1b",
    "signer": "0x07024945569e5721E4d506B01fB850443CF99F65",
    "userId": "871280797"
  }
}