{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "298795",
    "entityType": "User",
    "nonce": "0x8c1a4dc23a683cd7898de9538fda8cca177dd8afe9b28f153618fbf74be7513f",
    "signature": "0xa23785fdb0327a9bc6041441ac7d50232fd1a10e4a233df76c5202978f4cc1ea3cc897ad1bb2b73248c7f9c9ffe88f32ce4c97d43d2f1edce05387734cfd9eb61b",
    "signer": "0xc26eA8B58Fc9bC4B812DC6e0869c73b1B0b8B900",
    "userId": "746820395"
  }
}