{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6192d77427353b1dd0123e1f308ec655d29bbf9da3480d092fd632aa99477bbe",
    "signature": "0xdcef8b2a7862a0f3d0553cbd94c1c5ada736824ca687942fc4573e9838f10c692259da8ee6885c367aa99e050b0f945607fa6cea61e87f8467e6e1e3f6d4779d1b",
    "signer": "0x7331fBff38caf8d95B1b4A6d0eCc25Da1e1a4372",
    "userId": "399559582"
  }
}