{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x25e9f1344525f7a5bfc24d44ff11dcf698bbcb449d6944be557950f9328c92b2",
    "signature": "0x9d9bc8007b3a1a6940fae885d14c0067faa778bdeb11420babe7368ceb163c5666237bef3cc43b88807906b4dd91603c6739014554369dd35077e4f82aad5efa1b",
    "signer": "0xea79EEd60D97517387a63Acc5fd3BeE2227F1658",
    "userId": "220230236"
  }
}