{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0x04930348e2ef638ffbfd6aa8af0998f6cbc2e20fb066d70b45e09a60b13fd1b1",
    "signature": "0x6161b7da419a45bd5c8b9ec1a5a8985f1612f4b50fc9cc07175c628ea75690c515abf546ab2e7edaf6a5553845d2f63af45110b9e4dbfe86292ce28c1baa06671b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}