{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "460109700",
    "entityType": "User",
    "nonce": "0x3ec3cc89c3ed832b429d71aa992bb43c6ddf798ee56041d38f3d13921445de08",
    "signature": "0x83be93974053a08b0ddd8892c2cba9aba10b64d4e69b5c2a1945eb3e5eec989d6610f5eabc4853c314bd3d122139f3a637bc447b339f5ec45880c3152a54c1871c",
    "signer": "0xfC070d9d02c152146e3D1B2cD4B03FD7a3CA1AB0",
    "userId": "539537193"
  }
}