{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "124622",
    "entityType": "User",
    "nonce": "0xea4390f9941b731126db19076d53b3cb895de53d49f6fcec47150943c4fbb4dd",
    "signature": "0xfefdf4b0f0bb403e8cb5fce77822d57dfa7a126b392bb1b37d8c6506d4edb1a151e168a90392258afbf765ba047f24ae0937af221f71e17b357123b64f2739561c",
    "signer": "0x3731d7Ae56BB1D34C65FE26AF2C4CC1FeA87B8D1",
    "userId": "226031618"
  }
}