{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0xb12dfa4b61c47574e94ddbc04ed29fa9d1635d5c86f036c65b2cbeee24679668",
    "signature": "0x7d1db11479058b35f2895102e3e12e6f8a7b83f848a5a46eb0a4faf9595ed8ec0d78635a41be5a28dfccf2cf0a33f665500f7911b39f938db98fce3c2be55d061c",
    "signer": "0xC1c390791Cd8584Bc0D056AdDe5c3D747aA694d3",
    "userId": "395219571"
  }
}