{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x82c7a508cf183c5eb68a923cd039a504ba973b4e9891ccc5e26dcb18da326ec2",
    "signature": "0xfc4b9f3a245579811e967b6ab90d86fe107fd27b76ac274d42b6ee389479b66232105d74921a38ac5ac3678b52ae0b056e2ff5aac8ab250fbb279e4a745461f41b",
    "signer": "0x98578C27EC039C3140f5AbDed2183aAAE1dB4d1d",
    "userId": "392272509"
  }
}