{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2154",
    "entityType": "User",
    "nonce": "0x084d57f2d6a0914e8b9fca403d858ec87f47fbaf78753a375f10c67275adee93",
    "signature": "0x0678c6a707ee0b83d8ea9606a70133803d31734266750bc7bc46024ab6c4f860185b975f7130f4ff23e1a3e167d2cbca3088cbbfaf9d731b1d3b1a122e04863c1c",
    "signer": "0x22Fc85b6fce8CE12f05a05dF6894b4140b7e8bC7",
    "userId": "373394983"
  }
}