{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8fa802828e4145b2a1e1f869635707d96f7a073f006584c8597dbd634face4fc",
    "signature": "0xa256e8f67c43cbe241bfd12ef4b606ef06e693c295910c6e0ab843c6b8d711317ab5b7b55164be6193df416da211a14ac03a044c135b214468c29360616a2c571b",
    "signer": "0xd7371f080FBF0B1790ff9ae6cFB96bAf0bBB20F5",
    "userId": "976268410"
  }
}