{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "90071",
    "entityType": "User",
    "nonce": "0x532b87fc2178c1247b9b2db7a922409abe3952e2ee55ada68656ac4bf7660ba7",
    "signature": "0x12db65af9e347368901fe47298123791297133e4aee97a675c8bf6b5d4740f884d5c5f88484632656dc8f3deb159519905222a299751fb05d68714c57eef7c6b1c",
    "signer": "0x49368dB15B9A78dF090195AD4338818bfA70C88A",
    "userId": "381576190"
  }
}