{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x12a10ba081c443befd6b39967e243a03b1ed112e5c8a525535bec47b5611e1b4",
    "signature": "0x76038bc532e677f2c4ca77f2a971193338da6f7bd0e29f14d5b7409601486abd4a486feccea342d2cf955fcfc0a4f36392a39654e9c4de5b1bbb8577d601a07a1c",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}