{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1959381",
    "entityType": "User",
    "nonce": "0xdfbcd01e37b9ff65869fcc55b7e9fd7b7bb5490058035ffbaeb4af790c48ff5e",
    "signature": "0xe17a9bd47e8ef85f38418070ed95c912b3c855c45b52a8e4fad7dd88bfdedeac3b07d269188ade45acfa6685f2216a3c03518b328b235c801320696ddac0e0d41c",
    "signer": "0x7c9d2f958F131a1D25547c83ea50C0B4FE633874",
    "userId": "885079650"
  }
}