{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27447",
    "entityType": "User",
    "nonce": "0xd59bca5db0d04e048008b7ccbcc694c1e73c87a8e87423f2665fc4121e1aac4a",
    "signature": "0x5c6642ebee177a7730f906238574ec2009f888c0564acbc2c2a1b1442b3c96220ced1f280b1225b47a1ab55030f11bf8f8e2eb89cf57b47aa93bda5fad2d35d41b",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}