{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "327497840",
    "entityType": "User",
    "nonce": "0x76c70989963a7f7f9efb86ec8a4df95e8203f6be7ebc49b72b15fbb1cd2b4bef",
    "signature": "0xe730ef7cd94ba56a3c27d052d3ab48c710c1d8ae695c4bb83490aeef04f5481b0cd4a8baaddc32b776f26d36f849ee9c6bcb7f73d992d49d57df74492c19f39b1c",
    "signer": "0x6D2881325dD3134bb2F2ECf0FdbF7a46A6c352d6",
    "userId": "324443433"
  }
}