{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2005440",
    "entityType": "User",
    "nonce": "0x0117d0ad2c9b63f396fc9f803cbf0f516a546dc9e3b1b5a0983eab903be01a92",
    "signature": "0xf9ad0272c41e9e7f6bc46a9dc0124781f20a3b770f24bc041d91ebbeb5e5783927b014f00004b6db4fa8f80ddd309e006d2a4b67aeeb7d8b7b5e903f96cc61b11c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}