{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "103768",
    "entityType": "User",
    "nonce": "0x0da8855f2bb8eb83a0c05375162377d74e5ac0ba919599f3d8781f47ffc26811",
    "signature": "0x1119a09ff475765cba3694c639df5c2b81f34efe0a424031b411131b742277343222208df9c333b4952a72215efb6b49536b4f833eb64bc3806576922e27e0e11b",
    "signer": "0xe74EA561439c78F34f4928Eb44ee8Bc5d67c3d45",
    "userId": "781858883"
  }
}