{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "450156790",
    "entityType": "User",
    "nonce": "0xc4c604a8160a726b4e2918d3591ee51813ef8c1676cdf548cec3872d841e75bc",
    "signature": "0xd4afa45e2398b7b2a23ad94f2d2da0b29b396cc63c8fde27197ec0f911fa68ac1bfe9ce59522b070ff9a8757a340540d6a43b5522d558fbb72051c2598daa51c1c",
    "signer": "0x6fb79570A836Ea8554ad1D745C12769B22f1e4E3",
    "userId": "283478"
  }
}