{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x410a371da6796d4eb0d4c7d4b16edfb924b27c58b660bbc2fe9f216715975ef8",
    "signature": "0x3b0e3216b7922407dee4ec47fcde935311d30ebd249293dee49be87e948777f15048328c1fed3530b4b81e3e1d9b579e05b7bf7dee48e82c2067a7e73a4ad2631b",
    "signer": "0x798188d458BeD948ed24b9c7F913E3832f081e79",
    "userId": "50442981"
  }
}