{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfac6101321fff6c3312577988c903b9f7dad32eb5dde52543826815cf6e410e9",
    "signature": "0x8ed3f88b29b11e70fca1a1e5ef9770e6647f649239ac2d1e05b10f5e3584fab441d0c0a3a1d94739f15aa7a585c707089b5fcaaaf58f33c4ed202bf845b5b1c11c",
    "signer": "0x5D0372d2E54966695E3D7a02EF5228516b617eBa",
    "userId": "55079889"
  }
}