{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306102391",
    "entityType": "User",
    "nonce": "0xcd4e87167d31956e3c91edac1e1d0ed2f6a438b1f040686255438c7b4e8c6b39",
    "signature": "0x5267bde764c93931521c4ca358e5f13a0003b6fa495ce9b58064d08d06f3f2343608fada249dcaf261224980bbcdac423d397a859cd5992254f85389014001061c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}