{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1655515",
    "entityType": "User",
    "nonce": "0x1cc1b7bab1eb228a8291210aebf8aa0297be5071674a3225ed1d7786fb82e503",
    "signature": "0x7d4b64f36d1f3c2497803dab3b95d3291d3a30cf313413e9bfa64367e900b50c47d8554417abdbaca37869c10d399c4489d97d34edcfd8da4f9e30d793bce9521c",
    "signer": "0xca7c61d7Db568b81B8A952B917F45dd863B736F1",
    "userId": "144109"
  }
}