{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "806873848",
    "entityType": "User",
    "nonce": "0x99f980118716b00eb8b7b30ad5982fc3abc14205a067356fac5d6cbef89562d6",
    "signature": "0x85506481b0dbca40d63e40cc053d03e5569b4fd309bbb470fadb7924769471c81414d04094246f595b5dd709694a6be5eb02cfb1bcce0f0056ebea0d17c9b7d81c",
    "signer": "0x7a75a4f6Db403e120768B73C5e7dA9BD6eF0306E",
    "userId": "547641018"
  }
}