{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x061cf06e3b7f934ce71f8cc8757d64137687e9df7c6dd275a15af8b70c3c86ec",
    "signature": "0x99dc97ed5e1c89c3794088ec060656ffafc8a161f3b8ab9bb5328884a527372e38b986d5aad72f29a4a4162defa13fe3c884a6440cdd5ddaa5b8270357c7c73d1b",
    "signer": "0x168ff3b3F21912D4d676468A80Ee2af0E2F24a59",
    "userId": "124431641"
  }
}