{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7000",
    "entityType": "User",
    "nonce": "0x6df4f21242c626fa58b5f9fa0b940dacca37650f41cdf7556aa20ba5f2963324",
    "signature": "0x7d2a83b91b03535f8e00250a6054698ebb7fb60e0a4cdedaace298cff085133a384c224de7bc4d48a8f18bae6412134164d03bda3d531ec17ac5d8f96ca6d1a51c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}