{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40013",
    "entityType": "User",
    "nonce": "0x6a05a0b2ce5a826eb4d50b6a97ff8dc86e7a774f6a8a0b36d4f9a07c3d7828a7",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}