{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1418873",
    "entityType": "User",
    "nonce": "0x2e71de241c295e31be4a2d7dfe55558ab9bc8096fbf5d64de7b0535d247c7d94",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}