{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1316336",
    "entityType": "User",
    "nonce": "0x18902251b6ee6e910dddbe7b0c7f8e75e1742ca8e725bbee9a0288a9304ea915",
    "signature": "0xf5a91e347c2252bb3794b5e845355a39fcd105f5da25178eea7265f8f89a18193dc7e1d7aaa0adf621669bd07f959cbcde029a3c02cde34613ae1bc69b4ec91f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}