{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "620550962",
    "entityType": "User",
    "nonce": "0x86975d45dd84483e373bc60dcad32848f53b098dc6be8326069af2f02f74a1eb",
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    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}