{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18752",
    "entityType": "User",
    "nonce": "0x71a388127c8497b31322fc6ac8f13f2690d0088eff5e671907958ebf61238110",
    "signature": "0x2f4205b6c00d76b1ec126e5de30e29d624a85f619d7433348e9f0e3a71f859694815b23122e903dccc2a1606d1cd5e970d8499d9847f903603c01c6da09f92831b",
    "signer": "0x7a252808bd60a26fe5184c95eb104CfADdA8D4C1",
    "userId": "186415718"
  }
}