{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x8535065b966ecd09944d3953922beec46060e2ff13c7c89c53d9b5731f1b5d31",
    "signature": "0xbceaa06bc14919c8d59102e67e17368fdcff192b2d1d77c0dd01bfeacc78861121bbba36c45ca05a7b91224393b3e1617f7b4c6f85cf6f9aa78f9eaae49752831b",
    "signer": "0xf4e39f23021D832A7D8e37A3e280Bb0E5bC75bFC",
    "userId": "406892069"
  }
}