{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "530432949",
    "entityType": "User",
    "nonce": "0x02daae42c04f962aa82560f98b76e10e62dbe6e641c97ca3db0c7fa44c9fdc17",
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    "signer": "0xE5439a0580b68F2058cCbdB27461859c63B3C9C1",
    "userId": "30403219"
  }
}