{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc67ff18997117eff2f2b260484e7e39e15e1f84955717e9cf425d5bd3ad6aba9",
    "signature": "0xda77ceb767d380b0037bb88e9ac8a3a0cf23f918135ec58798e2de0d2d6765aa5140250de85137468858916766f694fc569c526cd7f15571a7a54e6b4ddb91401c",
    "signer": "0x17dD449C895B0Bd0695f18B39fc782E606c2a10F",
    "userId": "718782552"
  }
}