{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "952154530",
    "entityType": "User",
    "nonce": "0x56f7ce0beda22f56501c29ff9ab29147cd94f07714793fd85324f4a256667ecb",
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    "signer": "0xB63c8A7B935b55823f383e8f19B6207FB6b31168",
    "userId": "330374208"
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}