{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20671471",
    "entityType": "User",
    "nonce": "0x9975660248d1d128e9b01a84ab7edc9ddb807a3c53e901f45239e5ef7e17197b",
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    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}