{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x56526a86f3de1b11d677e5f5e4508ffad8a0b7c8f7cdb6c68eecd41081e960f5",
    "signature": "0x3ba31638425106507721788e77e6a0622c158af5a045c737645886c86e3012df27a5a95af9d00fa1a75d508f22e10d1d3043e017578de4263b644e7d36b779f11c",
    "signer": "0x63548FdB36210310447D6d3547c8263ff479c04F",
    "userId": "9818941"
  }
}