{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "141505",
    "entityType": "User",
    "nonce": "0xddf75fc6fefa562a97d1ce6d78f33c7b37abf57dc1b9732fbd51ff9b7bfdbbc5",
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    "signer": "0x15A1679B5B40F95A49D54741E1993518dc9C2129",
    "userId": "819951979"
  }
}