{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "215104",
    "entityType": "User",
    "nonce": "0x9f561214e1b7e70be5d08085f7c231a0f7769e7183a5f5476c30b19e0f8f7783",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}