{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1667474",
    "entityType": "User",
    "nonce": "0x963bb173b3486f6e78bafa4b7e4f009421bff65a91cf6ab4c4c485178501638c",
    "signature": "0xfcde9ea844b2859a08ac510bee6913ea937f387a6b306344c342bba8f5bcedde4f404b267b1ac9c0303e6721e7d0446c0339d6e67c8a48b8c9217c7cd034e2c31b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}