{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395602",
    "entityType": "User",
    "nonce": "0x67a7239bffc45cd4010bab85080a557ec6ee5cb0857bd8019d1aeaa8fc01aba2",
    "signature": "0x1edf71a97c1300dd83631aa8050eea5f6d2a00a0887b53b81e4838ff369c6efa125446b1db3c5615eaa2d80b7b0332a90743132c9089a56d7bcfe801d015d22b1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}