{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdaec5ffb715953faa5125a60a620edb3185070609ea126eff4c50e29586a2ee0",
    "signature": "0x918ae0f72039f2bcc0958ff314819f28979d05b0a1a6c06c37948456e32c9f983d0a6ddc8fef792a8d420faf42a8423d01ed60d53f20352885a5c91e67d3a3241b",
    "signer": "0x9562F5895A87678af3d64CB15bf38c3517BF661e",
    "userId": "632312864"
  }
}