{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "174587",
    "entityType": "User",
    "nonce": "0x16b174065dcce4fb4e7154649be1bab2dae4015290f9538a4e1ca0d72a86747b",
    "signature": "0xf586f8b049a13d075cfa8913699606abbf434198acad5b31134758086ed3ec663fcc0cbe71f15d1b31206547cfc9fa4424b679b9546c56653c7f8fad3e25d80d1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}