{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "272569",
    "entityType": "User",
    "nonce": "0x73c10fc07daae0eaa9f269c21b833ec3e69c903fcaf4539722bfba62df8a187e",
    "signature": "0x5e5c42c51b7591d23d0f55413c5a71e2141859f1e240f3aa8c4312eb9d23ef0c6e78beee8315c62b48d62865ae0eb41e4463e4686b71c44fc5829afebb3957691c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}