{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x67adf1160c5e86b7d49319dcd9cad5c1adf3cf880042a154f8558aa7016817e3",
    "signature": "0xf0f32b805cb993b424df7aaf31bcf2a6cf62f2e48375c1474376a9b266ee1d372c735f7aa8ae4141b85bd32af32cbe94ee3ffeb33576d04eba8afe7d8244e7ae1b",
    "signer": "0xE7a28466b2b9Fc56dd53BF75cEC4544E0b73587a",
    "userId": "958150326"
  }
}