{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8f22418966eb881ae15dcf2185f603ab1414da110ee76cfb525748f2538d5256",
    "signature": "0xbbc03b947b4c6679f808484c42dd17f7f453b03fa6fe8b4162457343cde0c7b544f246be54f4ba7b8808d99c81bb3974de1173619fe902135851a1b2395f7fd51b",
    "signer": "0xF17E52E7e1358c4655BDe70ae6D75082f9eC970c",
    "userId": "382794596"
  }
}