{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x465c16f4fd1422d89f135a2942cd7d5d526be77a8b5ef2f679b6e19a723dd04f",
    "signature": "0xc73116a357be49f35976b42a568d653ebf9571e911478cb8098a3320bf5bc2ee48e585f9973789ddf9cda1ab13a0d02fba3c030c6e03faff6d1a26ae990417fc1c",
    "signer": "0x689Be5c20E6Da52e11A70751E9FaCb05Abbc7805",
    "userId": "676830468"
  }
}