{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "874277249",
    "entityType": "User",
    "nonce": "0x8113672a35c6c5a708d0f655eda7bc2077c58a8f989bd300be991eef9092782b",
    "signature": "0xe1b310e0b832d0d5d62d8f80dbc9b55dd785e714c3d0c5b8ebd063d1cd4260ab7667f311382cccba72c87ef7a962715261e2309548100e35c186d5a3e1ee2a9d1b",
    "signer": "0x5c51216FbbB9B7A562f11267f91f72A7be1e8DE3",
    "userId": "105826"
  }
}