{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "735980234",
    "entityType": "User",
    "nonce": "0x183af1a7567f790452c3e0b22eaa299f9f6d18ef3acd7e971271cbdc803da44f",
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    "signer": "0xF300c20BDBB459E009c4E55c08CFd33E12f8B0Cb",
    "userId": "782218508"
  }
}