{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5565",
    "entityType": "User",
    "nonce": "0x4d3a07b134513a4df703da63e34e09c2ac1ee4dfd51c40b86ee3d300f1befcf8",
    "signature": "0xccfaafd44989564254f03fe3f9295312b4b42d9c3a498172285510253c7557be434899836eb53aa7c0184d65362e8af98750b7e8673eaba493268b84f36257d41c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}