{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6129",
    "entityType": "User",
    "nonce": "0x3ce48735d821b977041fcdb0962eeb8dc859cd507152b36804384c59d21ad740",
    "signature": "0xf5419c03ccba1c49d1428f82724a6d3dcddafd374b7756b791626e896629a7386aba30bfd1acf1c9987ef66f2afff86510deb399dc0df05a690560809af512be1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}