{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "151624",
    "entityType": "User",
    "nonce": "0xf9cdd2a9d297c260982604e81042bbf33bd3a8f65f970b3063dab37dafc97ca7",
    "signature": "0xdd7135ae19bdf8fe3312a35d10ce580d3f3423bd5f8aae0039b1e50d92ae80cb2da524e7721a7a1cfd9171a0c13c9fbb7baa124817f42fb6668f6c57018a094c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}