{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "484365174",
    "entityType": "User",
    "nonce": "0x29fb9970747248fcdf0a60163d4623ed14dfda1f0ba94f94e9f1a9a139f79356",
    "signature": "0x4f9a4e2345201572bad4b801eb994eca53fc940d31cba93b3dfc7605a7808f534a3c73721bec187da080320ff58c204fe740291d1e00dc5c80ad73a25ce5a0d31b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}