{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x0d0107ba09c19f3350759791b8cd56c451adad8893856b3ff13eea4f24300fcc",
    "signature": "0xa9420844dc0163f5b642b00fed70f2fbdf4227fff397a94bcc1b25bc2f7c7f097be47e5fa75076d73095ae7e7f82d178852672be2604efa383627c6e578cdeb01b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}