{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1c6835fc25216dff49b073484702beb9cac4be853a73bff9bca0e2d88fab7ab3",
    "signature": "0x114100653ef99eec9288e93cefc48c33d4fd992643ba5ad27a0d214dfa9ee242348c769cb6bac836ad9202ffb9785acef60e983f518fb20e1c6d98d18c8d83c41b",
    "signer": "0x07c1d288155AE8d621b4a6070b08D05871DcF832",
    "userId": "108910126"
  }
}