{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0x9288c5769852210959acfbaf7ef0651c74c310b7bc23c305c2fb3bd87810347e",
    "signature": "0x04ac03fa6f26923b27ebd3134e3c6e451073711ffaf8d6a8c71f642def71ec677356ba6bfa4024c6b5e0e6a26b99e18115202a5057cbfb7a0253342d51b7e0631c",
    "signer": "0xa6537b4A64192585E782889E1230Cb8E13E01fd1",
    "userId": "154253595"
  }
}