{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203774",
    "entityType": "User",
    "nonce": "0xd12d84310f2df59c49ad0b873d4d26fc5a9b09800082e22202e3b028165ba9b4",
    "signature": "0x50b40dfd2056eedcd2598748f1e879d32121a86fd77229be168159bffbfb05db2806a2065af984a8244cbd8fac7731c9b0b70b22db417da347758736a2743b331b",
    "signer": "0xF08935327AeC6306C8d0eb92999567e5496848C9",
    "userId": "989073793"
  }
}