{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "397766",
    "entityType": "User",
    "nonce": "0xb790f2fd6d9c8eaaceed3fe9a3cc36288815c36b5e5398208a95c5d27108c861",
    "signature": "0x997f8ccb300f937347dcf19fea2b38ab7198f5718850e83e250d06371d71842a3ba12bf6ae708d76176692584fd38d10ce85f05323db41b965f0dd92f9acdf931b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}