{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xef107dfdfdc6a3a0ed0505ab18a24b54677b82418fabe4aa83115a4b52ec800f",
    "signature": "0xd599352ef1d2a3fc48a6d430d24148eb48232cf1d2a461b46c67512c720693cb0b8d5e21d3b7787f6269d59667cea37379ab8659615ebf5d7e00eb269bfa9c921b",
    "signer": "0x380Ec65A36A1655B8F92293e21aA15581356Fa85",
    "userId": "142361762"
  }
}