{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x998a5c7a83845360ee282143b1f6f7feb19a9a155c0c243ee3d3d669ca1ac71c",
    "signature": "0xe8035aa30b06b499a1f8702c44563486011fd40f1a336fde2dffbebd26f7d4a64ad15927b8dadb75eecfded9982b99fffb8a4a5c4bd20802b2817404ec81849d1b",
    "signer": "0x7BD87F35c7C78D09659bb82c34d92F601b3A3E2C",
    "userId": "745972464"
  }
}