{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "296889",
    "entityType": "User",
    "nonce": "0x6a94244fe3a0ba7ef11b7b877d4fccf35e896815391c6f0f5863021fe3f6cdad",
    "signature": "0xdb70c994d9e86892008fff65dc679aa01a6ba9fb346c95986ae546488bd06acd2ad1413749ee2438639c669071ac61ea8f2d79d640e1bc6883ceedb163107b921c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}