{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbc3f7037462028d108e1e8468b6500f1760d66a91bd88ce74ee001b30ba92c99",
    "signature": "0x6c0b1e6ea756c894286b04e24d9a29c5d608c062daba6996987c93cbb3841c132f005b4fcd257d97f818a007930bc3076112442e2d30fd5edafcee018698bc8f1c",
    "signer": "0x967c77E6BD1aAb5DA9348e9EA3b6246cCfBEF68e",
    "userId": "134445366"
  }
}