{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x208dd43663934a654f6b7820b29c481905901046b57c4e25cd59a2f800070d25",
    "signature": "0xdd68f7ee16796f9e119d2b4191bfe018b2d7a09974c28eb631ad54dd5fb242c960a031e692c9308f89d37eada1ed5dfc930e852f22d7a8c7a4bc2860bc5044071c",
    "signer": "0x292eF57C1FAAc86008ab58D5116e0ba424C9189b",
    "userId": "721084704"
  }
}