{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916525058",
    "entityType": "User",
    "nonce": "0x504fd0e437b3a0d98e51f1b14d4b1885f121cd002ac0fb634ec05a60f1d46a73",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}