{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6e7031b19790a19a0b44387dd141c33de314784af31d176f7bbae9b76809a5ce",
    "signature": "0x7660f44621625e9d740f577d749730e06edce1bebd96fa8ea72d49c1160b63317af537b7092547f62ce4c5f497a3ce7b61581950bc47335b84d5a9f7622f099f1b",
    "signer": "0xdbb5FeAE65617ed3C8616A66B1152898647cb83F",
    "userId": "936213876"
  }
}