{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "129104",
    "entityType": "User",
    "nonce": "0x9e9ee985c2f702859d91d048127ee0f43966c55c866519df5d20a93cbb49801f",
    "signature": "0x1809298bc093f3ff813439df8ad42db86cdacef1188187874de19125bf260b7a3c23ebf43754655b415b06b6f26fc41cd8bfe9c328fc053509deb3ab03b1d6a31c",
    "signer": "0x64b5D065BCE2ae4eB809629c32e7C75ec91cFAD6",
    "userId": "513910447"
  }
}