{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0ffa6251e5fb92e5cde7898a2c10fdcd7dbd947daaa3a549c3c63cf95d32b34d",
    "signature": "0xbae2c179bb8ba28aca887e83b2f3a033f64b915d0ed6024f4c7447b0c832b8b21682393d66217116838de0e82a0882f1e3f0e78e169b3f15aa4582e794b7719e1c",
    "signer": "0xdD03ED106abBEF4982159500e32B8602B985a69B",
    "userId": "444965341"
  }
}