{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7f15235a510a31612bd4928062c40bcda4df8cdc8cca93a019fe48c84c769aaf",
    "signature": "0x5be494c4ed5576385e83fb3a9cfc9625e92d46a935e8e16bd40427b2e98509c215ab39b7bae01909ffb04a2595d6e240bbb496d3848cf28fedc0136b8344d17d1c",
    "signer": "0xC15685282b5cF6e70cd43c8E59975d6599a5975E",
    "userId": "838826253"
  }
}