{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x5f0ca6f2b55dad48429466aad2a46a223771ad033a3cd791e09803f45002b8bb",
    "signature": "0xacae1df97a603b2fba6e770ecb79b73c86fecd75ce16f96a5f6a1f1f01bec6ce7358f46cab36a743f76a7295d07f5cf982487192697edd9d097b959a0ad9244c1c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}