{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1425369",
    "entityType": "User",
    "nonce": "0x946034f255f392a8c6038ece0dc52fd6848192b2ebdf53b394b501d5bc909b66",
    "signature": "0x241b67667a39062f02aa18f5137164e87eea0f9047d0921dd8693acad216d2506d85f8f9f7b7c0ab10a6d6ed5b9a6c71b7fad1e0e912fb27b588b4b3239cf1a61c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}