{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "715573876",
    "entityType": "User",
    "nonce": "0x0088e6054e15c8ad407637cbb55a7cb2b274e6d4a2bf96161a3ce546b7feb950",
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    "signer": "0xC69389b7A83a682D1764bEeBC6A79ADA42eE56c7",
    "userId": "860339842"
  }
}