{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297598",
    "entityType": "User",
    "nonce": "0x9a10a91021999a345139c7649d4a13a4e3fef0df2dc1fef2319e4feb6db0935f",
    "signature": "0x01cee4c0fb84d709c381add05643887f59445e961261da9bd4ee4d94e8fe754f074a57c80cc54d55341ae6155c7b1a9172da7fece2b835ef7f9c0392867d38421c",
    "signer": "0x3e16afFf69eC32202c1B755Ad919C7aA325B7aBE",
    "userId": "902811065"
  }
}