{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1880653",
    "entityType": "User",
    "nonce": "0x6a2c6ecbcbb2e4ce2ead3938796902b68ced2375692c768171ed67d23983a64d",
    "signature": "0x9f12c9462235522fcb36fa342d4d83e7672b5573fd929b3ee2e79e50dc77a0b92f3133a9a3d67affe10d408c9194efe284054ea49c6afd1d187a4c8365292de01c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}