{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105562689",
    "entityType": "User",
    "nonce": "0xdf6e4c7f567b08f25007659b56ceac4ec2c7f964afd18b67063883734bdb017b",
    "signature": "0x2f9a6ae9bdc16b7d52c3036e1e3b1c6f74c65c7caa76ed96b5df5a097ac4bcc261238cfe1473434e055cd40bf9d845dc2e36d7c02c3b1b632d209cc3addb81851b",
    "signer": "0x48c57b64a5a12Dc7C7742Fdb629EEce52FF5591D",
    "userId": "930634116"
  }
}