{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137120",
    "entityType": "User",
    "nonce": "0xe80e60c5ab9f135713ded49b781f2a3b60eddcd2e2ac38e46591aa53eff5c853",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
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}