{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0x78fce5e7b7dda32cc3aa048f3fcb4818a0ff9b68379ce3d16057f4c87f6e27cd",
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    "signer": "0xBb2caCc6cEB2E54202DC5061152e55e2E7e6ed85",
    "userId": "1855643"
  }
}