{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1252009",
    "entityType": "User",
    "nonce": "0x1a7603aa2e65b83a7f1c18d59df1c77c984225fcb0d54dff16109c8e96f01c8d",
    "signature": "0x0ce53740e3a47c3175973866911c89d0c7e47e282ef1711337605ae3ffe44c8b30767b3e9bf45c5e2209b3fadc206dca4592ce119abd1617628e35e60ad370411b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}