{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x72e3551608b8836b8f248eb9157058ed9c3093631141d9bfb670e3a9fe9a0f3f",
    "signature": "0x325a796407bb0e27d77dec3600070a6bcb7931ef21e0fcd8340b13d59a5e824724dd707328f8e744a784cb2b1d83aea83aa31c7dd71a85a4e90367deaccfcb341b",
    "signer": "0x05Fa14948e5d52c3ed23534257EA9AbB5C503f73",
    "userId": "878751743"
  }
}