{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105564197",
    "entityType": "User",
    "nonce": "0xba72f2773e7a4777decb2f0f24b84d9d5c4fd686d7117ad74544bf54e52c9b2b",
    "signature": "0xac1e8978ad19baa0cfa5f60c277f40af83ffcae5fb498aa019b1228c5b75b73234b9398a71ad9c2798c59988c86dd24711f5d99fd8218c9d9f22d21958b82e801b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}