{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc50df3cb3dd348418cd278d46a78d4a8ef90d0720cc02b57b9d6303c369a6f3c",
    "signature": "0x05d7ed4c59011b4963f1a72ebd99b95d0584ff9a3e00733f4d391e0f5999520554fd6f562b26e56f4afcc32863372ced46e6068e6b7036e047647969b4996a381c",
    "signer": "0x5f512800E8460c0e3A244c95Ff54E4310f2c488b",
    "userId": "82636883"
  }
}