{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "893863695",
    "entityType": "User",
    "nonce": "0xa5f9ef3f9a27e14691f98dac8a88a7201d316076516663824378f4933d0136fe",
    "signature": "0xe241959a1f5929c3c0ae5fd476940d97817d3a5ac40bb2fc662c3247336592d345c1960ac7c06bac9e93cfafface0e07f8db628715e829c7d5db3a7136c792df1c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}