{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "314581",
    "entityType": "User",
    "nonce": "0xfedb274970c11088971df799c34327b06aeba8da70116196b63fe7cc93cd2260",
    "signature": "0x1135fd58ccd2537170dff70b0489d73e9ec764dbb4d52f8cb5965a5af9cdc6bb7847d581ed80e97b2f0c1af17b049ae6ee94efc8263fc3813e4a0680e6f2114d1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}