{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16487",
    "entityType": "User",
    "nonce": "0xe9f13aae59effc4d785c2379f6f43d524b4eeeae3a1a3d87a4cc0a6b9dd71029",
    "signature": "0xb711c175310078d845cd622cc40f57e46552f0124301a2d002bf1bee770dbc0d5f55062384c8996a547f195861f2d223c175b250e76f63b11d6523aa601d538c1c",
    "signer": "0x80005E1c5cb88Fd03a994eC8a06eFD4c801102D7",
    "userId": "225974748"
  }
}