{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "342366",
    "entityType": "User",
    "nonce": "0x9c65d91f50c9169a3444866081110cb2b2c4a169fb62b4cfd032b76d4b3e974e",
    "signature": "0xd95142a200a97147ab6d6c90981f2fa21a7e04540a3b17366c43450ddfff900a4db3d00e57ae2ecb97260ec7ab9e7413f2af9a910a76b5f5d72b2d305d2e603d1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}