{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2cacd3ea4689d7189e97a94854e2080e6f196a51d0a0ab2f1fe6f16e2e11fde7",
    "signature": "0xa79417afaaee34dd022761a79fd2c25518eb1b1f093e84f4c5caebaf467a1a864c5434c0ecc6c4c2751a039026cddfbe3335c204f998172b44d2dcb83d2ec8b71b",
    "signer": "0xB0b91747bc10baCb30B0Bbcb5F388Fc620877E75",
    "userId": "613569147"
  }
}