{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2647",
    "entityType": "User",
    "nonce": "0x4f8c041dff805e2823590a584b68d9ce403f103e3ab0b9ebd78067aa7cd2fc2b",
    "signature": "0x3033f7cd5f3af989668f0f8ab413fe6e5b29bd49ab99432a6e225e0d6628ef4244c55a0f69fdf7808d83267717483cb4ef5033648fd06749440b0e33345aeabc1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}