{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x51eda72eedee7fd5fca93310095886ea732c9a32d8ac5c013cc27fa1eef25b90",
    "signature": "0xbb19934a871e33fbf1bfc40d861cd64f46692ab3d6e791b78823e376bcf4d8691eb2396c5035189887dd119f5fcd06785c57f50c9fec4c6bf16fb6ad499765261b",
    "signer": "0x4a5BB6017DF6bfF9161A2761dad449bE576C71B1",
    "userId": "797164033"
  }
}