{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42970",
    "entityType": "User",
    "nonce": "0x99fe8151bfe8fe1bad3f973e023d74b0516fb4609974109641c1e75271a33e63",
    "signature": "0xf0be606a417f79a8f2830b0c5cf2dcf3107a4bd0ff67a0ed3427efc4d60cc0c051fd896f56b49561b1f8b2c026d257a2f30b99d98feb93b9f750dab4028c32a21c",
    "signer": "0x45C682dAb9Cd8ED5e055aC2F6a860Db5F14c27C9",
    "userId": "611525840"
  }
}