{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1683",
    "entityType": "User",
    "nonce": "0xadb60f7c1f30158b539590a0e4c6c14599771dd84533662c3054f5861353fc3c",
    "signature": "0xcdca589c37f2f4606ccf6a0e43b0e190261861eec9e882612b00d1a54181474f0be4850bb05ff95079ac3c5d16702afc9b8b2f53a5d589f99a3b19c1a4aec47d1c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}