{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190351",
    "entityType": "User",
    "nonce": "0xb8dcd201da32e46700cd3ac447efc99410197aff0969137398295f73ea34c55f",
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    "signer": "0x965f46F4d06759d1e448c40e2A29e7b337aC73B1",
    "userId": "978272709"
  }
}