{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17662",
    "entityType": "User",
    "nonce": "0x77e51c549aabe29063b57555ac0e37e903c4f19a733185297d2cbe88af801ee6",
    "signature": "0x18c2047557950b877f99e65a9c599eeb1107b060daaf3c834b6365c38cc04ad44451218bf15526eb4fdf4cce0f35c7522ccb2b32c7a7c62e9cbd72c13d6cad961b",
    "signer": "0x316933E449A0b429014E405447c447C9Bc472bE9",
    "userId": "451684863"
  }
}