{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175425",
    "entityType": "User",
    "nonce": "0xe404d6689496d2768916b52470d26f6822fc9652a1c2f35224835f17c1e82f83",
    "signature": "0x43798c43a49d675f4676c5d18bdf5b4ccb7d48c67486e248091f6932cb32e07a504c0e6e49d494e6677c9ca60d4c3d4e7a86d842e22fae57179d3adaf7fdd68c1b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}