{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175735",
    "entityType": "User",
    "nonce": "0x64fc4a23aa4190c4000d015a899b01f02b0176abaac1e4806908fbc0298cd793",
    "signature": "0x2b84ebd6afed3d5d78094bc050c441906e8784677aa4f074c0841239bcc0181c5a84265f11ed3289eea1c6d68c69a9d6c4ab4e6b59b28979c92ae68ae78fbf8e1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}