{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x48043bd360d80220fc417deca97a10ebae40c8832941c3b7f762c58cd858686b",
    "signature": "0x61a0f71815f31fece6618cb5617e161a4e0e6716bda49de9a279ae3555783b0e624debc2c49aec3d6a71e6fe8429375a006e5fae6503d64f81994880fb1ba2c31b",
    "signer": "0x358cd2d8e18B193152218a14E1851D967008922b",
    "userId": "847844898"
  }
}