{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd14bc320c9cb915ee00f1da343e0a402de99a1862508d24f229537c9135f0d64",
    "signature": "0x752e58a5d8dc04c6c9b441ae966ee626a651b7f6279db42b6489c6ad69eb604908693a44c82918ac2dc80dcea238a877ce0e304e10192306567ed2f067df269f1b",
    "signer": "0x07225d6AC19d4d167B0583F7eb85024F3353d1a6",
    "userId": "526336200"
  }
}