{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43430",
    "entityType": "User",
    "nonce": "0x0f182f70c55b9366ecc46b628fa38ebf30e9b6e054304d489b6558f2b53fac49",
    "signature": "0x195dd160f704a3c79aeb8ad8e433b3e5728a5806e2accd9fcaa4e2442b43d5d1577efe485b0ce0940d5a8dbb44fa883dc5f08bc993891df2ad2d8672fd9f418c1b",
    "signer": "0x44567269b2165376Bd13d6bECFDE4A02F3ef59AD",
    "userId": "49012201"
  }
}