{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7504",
    "entityType": "User",
    "nonce": "0xb4273549b225e9b9f0482c71349df2231ca291cf2e64c7cef6f2925ddb0f4343",
    "signature": "0xc1beec79c624f5ab6682a2b29cd10e8774eee724d4f23c6e1974090f3537fac42a7f32d074b08c2b5c7c69ffa246fa461c20772855a69b96620bb51533ec61171b",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}